PAR

SEMESTER : II

SUBJECT : ELECTRICAL EN

FILL IN THE
Chapt
ers

Chapter Name

Sub
Topic

Topic Name

1.1

classification of powersources

1.2

Electrochemical primary and secondary batteries

2.1

krichoffas laws

2.2

Source conversion

2.3

super position theorem

2.4

Thevenins theorem,Nortons theorem

2.5

Reciprocity theorem,maximum power transfer,

simple problems

POWER SOURCES

NETWORK THEOREMS

Electrostatics and capacitance

magnetism

2.6

Delta/star and star/delta transformations

3.1

static electricity,absolute and relative permittivity,

laws of electrostatics,electric field,field strength,
electric flux,energy stored in capacitor

Basic defintion of flux,mmf,reluctance ,

releation between B,H,I

and

Basic defintion of flux,mmf,reluctance ,

releation between B,H,I

magnetism

and

4.1

ELECTROMAGETISM AND INDUCTION

5.1

5.1 Relation between magnetism and electricity,

production of induced e.m.f and current and
Faradays laws of electromagnetic induction

5.2

Direction of induced e.m.f and current-Lenzs

lawself inductance and mutual inductance

5.3

Magnetic hysteresis, residual magnetism, energy

stored in magnetic field- Rise and decay of
current in inductive circuits

6.1

Generation of alternating voltage and current

6.2

Different forms of EMF equations

6.3

AC through R,L and C and power factor

6.4

AC through R,R-C and R-L series and parallel

circuits

7.1

Generation of poly phase voltages and phase

sequence

SINGLE PHASE A.C.CIRCUITS

. POLY PHASE A.C CIRCUITS

. POLY PHASE A.C CIRCUITS

7.2

Transformer

Star or wye (y) connection and delta connections

8.1

9.1

Generator Principle, Construction & working

9.2

Parts of a Generator

9.3

EMF equation of Generator

DC Generator

9.4 Losses and Efficiencies in DC Generators

9.5

Characteristics of DC generators

10.1 Motor Principle, Comparison of motor and generato

10

10.2

Back EMF and Voltage Equation of a Motor

10.3

Torque, Armature Torque and shaft Torque

DC motor

10.4 Rated Speed and speed regulation and sped cont

11

12

11.1

T vs la, N vs la of A DC Shunt and series motor

11.2

T vs la, N vs la of A DC Compound motor

12.1

Classification of AC Motors

12.2

Single Phase and Three Phase Induction Motors

12.3

General Principle & Construction

MOTOR CHARACTERISTICS

INDUCTION MOTORS
12.4 Starting of Induction Motor
12.5

Power Stages in Induction Motor

12.6

Relationship between Slip, Torque

12.7

13

SPECIAL PUPOSE MOTORS

Speed control of an Induction Motor

13.1

Universal motors and its specialty

13.2

Stepper Motors and PMDC Motor

13

14

SPECIAL PUPOSE MOTORS

ALTERNATOR

13.3

Introduction to servo Motors

14.1

Basics Principle & Details of Construction

14.2

Stationary Armature & Rotor

14.3

Speed and Frequency Relation

PART A

BJECT : ELECTRICAL ENGINEERING

SUBJECT CODE : CP15 02 04

FILL IN THE BLANKS

Categor Qustion
y
No.

QUESTION

1
A

The power sorces are classified into two ______ and _______
2

The source which supplies in the form of current is called __________ source

The source which supplies in the form of the voltage is called as ______________
source

If the voltafe across an ideal voltage source can be specified independently of any other
variable in an circuit is called_____

An electric battery consists of a number _________cells

secondary cell is also called as______________

A group of cell is called as_________

The fuel cell will converts _________ into ___________

Fuel cells contains two electrodes ______ and _____

The two krichoffas laws are ____________ and __________

The sum of voltage rises nmust equal to the sum of voltage drops is ______________
law

The method is used to find the solution to networks with two or more sources they are
not in series and parallel is called __________

The thevenins theorem is used to find any particular _______ and __________ in a
linear network

The theorem states that to obtain maximum external power from a surce wityh a finite
internal resistance is called ___________

A
A
A
A
A

A
A
A

All current entering a junction point must equal to all current leaving that junction point is
called as _________________
The methods used to simplify the circuits is called as _________________

The two types of transformations to make circuit connection and calulation easier is
____________ and _________

The study on electric charges in the static or steady state conditions is called as
______________

The space around an electrical charge is __________

electric field induced by a postive electric charge in _________ and field induced by
negative electric charge __________

The amount of electric field passing through a surface is called ________

Generally an conducting medium or insulator is called as _____________

The material measures the ablity of thar material to withstand voltage differnces is called
_______________

The ratio of electric displacement vector in dielectric medium to the applied electric field
is called _______________________

The unit of permitivity is ____________

The force of attraction or repulsion between two point charges is directly prpotional to the
product of maginitude of each charge and indirectly proportional to the square of
distance between them is called as ________________

10

The work of capacitor is to______charge

The stregth of magent lies at the ends is called as_______

The group of force libes goimg from the N pole to S pole of a magnet is called as
_____________

The unit of magnetic flux is _______________

The symbol of magenic flux is _____________

The force that produces the magnetic field is called ____________

The unit of MMF is _____________

The opposition to the establishment of a magnetic iels in a material is called

____________

A
A
A
A
A
A
A

A
A
A
A

8
9
10
11

1
A

The reluctance is denoted by____

The type of charge ___________ and ______________ in electric field
The type of charge in magenitic field is _______ and ______

Like poles will ________ unlike poles will ___________

The production of a magnetic field by current in a conductor is called as a

______________

The ________ law states that electromagnetically induced current always flows in such
direction that the action of the magnetic field set up by it tends to oppose the very cause
which produces it.

Induced e.m.f can be either _________ and ______________

Conductor remains stationary and flux linked with it, is changed is called as
____________

A
A
A

5
A
A
A

If current changes in coil1, an emf is induced in coil 2 is called as ____________.

6

The unit of inductance is ___________

The inductance is represented by letter _________

8
The curve of the flux density (B) versus the magnetic force (H) is called
as____________________

The term alternating indicates only that the waveform alternates between two prescribed
levels in a set time sequence is called as _________

The angular frequency w can be thought of as the rate at which the angle of the sine
wave changes At any time V=__________

A plus (+) sign when used in connection with phase difference denotes _______
A minus(-) sign when used in connection with phase difference denotes _______

The current and voltage are in phase. The magnitude is VR=________

The current and voltage are in phase in a resistor then P =_________

L plays the part of resistance. It is called _______________

Inductive reactance is the ____________limiting property of an inductor.

The inductive reactance symbol is _____________

10

11

12

13

Unit of C is _________

14

An RL circuit has __________ and ___________

15

In AC pure inducatance the Current _______ behind voltage by 90

Ac through pure capacitor Current _______ voltage by 90.
X c is known as __________

In AC through RC series circuit = ________

In a parallel RC circuit, the admittance phasor is the sum of the ____________ and
__________ susceptance

16

17

The resonace is XL=_____________

18

In RLC ckt the resonance is _______________

19

20

21

22

The resisitor is a ___________ component

The power due to inductive or capacitance reactance ________

The comibination of real power and reactive power is________

The ratio between actual power to the apparent power is called as___________

The three phase signals has phase sift of ________

It is order in which the three phase attain their maximum value is called as _________

The similar ends of three coils are joined together at point N ___________

The wire connected to N _________________

The potential difference between any line and neutral point gives the ____________

The potential difference between any two line gives the _____________

10

Transformer works on theprinciple of ______ of two coils

Transformer is rated in _____________________.

Voltage transformation ratio of a transformer is = __________.

Transformer transfers power without changing of ---------------------

A transformer transforms both _______ and _______.

Short circuit test of transformer determines___________.

Potential transformers are used to measure ___________.

Eddy current loss can be minimized by _______

The armature of a dc machine is laminated to reduce

In a wye system, the __________ current is equal to the ___________ current.

The dissimilar ends of three phase windings are joined together ___________
In a delta system, the line current is ________ than the phase current

In delta connection the phase voltage is equal to _______

1
In a d.c. generator, the generated emf is directly proportional to the
A

2
The brushes for commutation are made of
3
The yoke of a DC machine is made of

4
The emf produced in a dc generator is _______ induced emf
5
The emf equation of DC generator is ___

Which losses occurring in a dc machine varies significantly with load?

B

7
The open circuit characteristics of a dc generator is the curve between

8
A DC motor is used to ____________

1
The value of back emf in a DC motor is maximum at _________
2
The condition for maximum efficiency in a DC motor is maximum is _________-

3
In a dc motor , unidirectional torque is produced with the help of
4
The torque which is available at the motor shaft for doing useful work is known as ______

5
The speed at which the rotating magnetic field produced by stator currents rotates in an in

6
The Ta/Ia graph of a dc series motor is a

1
The electrical characteristic of a dc motor is the curve between

2
A single phase induction motor is

1
The principle of operation of a three phase induction motor is most similar to that of

2
Rotating magnetic field is produced in an induction motor because of
3
Speed of a squirrel cage induction motor can be controlled from

4
The advantage of three phase induction motor over synchronous motor is

5
The mechanical power available in the rotor output produce ____

6
The difference between the synchronous speed and actual speed of a motor is _____

7
Star-delta starting method is only applicable to _____ motor.

8
Single phase universal motor can be used on

1
A stepper motor is a ________ device
2
A stepper motor may be considered as a _______ converter

The most common two-phase ac servomotor differs from the standard ac induction motor
B

4
The alternator generates

1
The armature of an alternator

2
The frequency of voltage generated by an alternator having 4 poles and rotating at

ANSWER
current source and voltage
source
current
voltage
Independent voltage source
electrochemical
rechargeable cell

WRONG ANSWER

controlled voltage source and

controlled current source
voltage
current
independent current source
electrodes
non rechargeable

battery
DC source
chemical energy into electrical
energy
electrical energy to chemical energy
anode and cathode
krichoffas volatge law and
krichoffas current law

hydrogen and oxygen

faradays laws and lenz law

krichoffas voltage law

krichoffas current law
krichoffas current law
source conversions

krichoffas voltage law

source transformations

super position theorem

nortons theorem
voltage and current
maximum power transfer

resistance and current

super position theorem

delta/star and star/delta

delta/delta and star/star

static electricity
electric field
electric field

magnetic field

left and right

right and left
electric flux

dielectric
dielectric stength
permittivity
farad/meter

magnetic flux
electricity
permitivity
dielectric
meter/farad

coulombs law
faradays laws
store
poles
magnetic flux
weber

oppose
n pole
electric flux
electric flux

MMF

weber

ampere

weber

reluctance

flux

R9

postive and negative

north and south

north and south

postive and negative

repel and attract

attract and repel

electromagetism

static electricity

Lenz's law

faradays law

dynamically induced , statically

induced

mutal induced

Statically induced emf

mutal induced

mutal induced
Statically induced emf
Henery

faraday
i

hysteresis curve

flux density

alternating voltage

alternating current

Vp sin wt

sin wt

lead

lag

lag

lead

IR

VI

Vrms * Irms

IR

inductive reactance

inductive resistance

current

voltage

XL

XC

lags

leads

leads

lags

capacitive reactance.

capacitance

farad

henry

resistor,inductor

capacitor,resistor

tan-1(Xc/R)

sinwt

conductance,capacitive

reactance,inductance

XC

ss

zero

unity

active

reactive

reactive power

active power

apparent power

reactive power

power factor

active power

120

90

phase sequence

phase differnece

star connection

delta connection

netural wire

phase

phase voltage

line voltage

line voltage

phase voltage

line,phase

phase voltage

delta connection

star connection

higher

lower

line voltage

line current

mutual induction

Self inductance

KVA

VA

E1/E2=I2/I1=K

E2/E1=I1/I2=K

Frequency

voltage

voltage and current

copper loss

iron loss

voltage

current

Laminating the core

eddy current loss
copper loss
number of poles
Frequency
carbon
aluminium
cast iron
aluminium
Dynamically induced emf
statically induced emf
Eg=V+IaRa

Eg=V-IaRa

copper loss
iron loss
E0 & If
Change electrical energy to
mechanical energy.

E0 & Ia
Change mechanical electrical
energy to electricalenergy.

noload
With load
Eb=V/2
Eb=Vx2
commutator
brush
shaft torque
armature torque
Synchronous speed
Rotor speed
parabola at light loads and a
straight line at over loads

straight line through out

Ta/Ia
N/Ia
not self starting
self starting
transformer with a shorted
secondary

capacitor start induction run motor

stator winding.
rotor winding.
stator side only
rotor side only
has no requirement for dc
excitation

simplicity and lower cost

gross torque
shaft torque
slip
split
squirrel cage motor
slip ring motor
both ac& dc
dc only
electromechanical
electrochemical
digital to analog

analog to digital

higher rotor resistance

low rotor resistance
ac
dc
is a stationary
is a revolving
60
7200

n run motor

SEMESTE

Chapt
ers

Chapter Name

Sub
Topic

Topic Name

1.1

Classification of Power sources

POWER SOURCES

NETWOK THEOREMS

1.2

ELECTRO CHEMICAL PRIMARY AND

SECONDARY BATTERIES

2.1

Kirchhoffs laws, voltage sources and

current sources.

2.2

Source conversion, simple problems in

source conversion

2.3 Superposition theorem, simple problems

in super position theorem
2.4 Thevenins theorem, Nortons theorem,
simple problems
2.5 Reciprocity theorem, Maximum power
transfer theorem, simple problems

ELECTROSTATICS AND
CAPACITANCE

3.1

Magnetism

4.1

Static electricity, absolute and relative

permittivity of a medium, laws of
Electrostatics , electric field, field strength,
electric flux density, energy stored in a
capacitor.

Relation between magnetism and

electricity, production of induced e.m.f and
current and Faradays laws of
5.1 electromagnetic induction

ELECTROMAGETISM AND
5 INDUCTION
5.2

Direction of induced e.m.f and currentLenzs lawself inductance and mutual

inductance

Magnetic hysteresis, residual magnetism,

energy stored in magnetic field- Rise and
5.3 decay of current in inductive circuits
Generation of alternating voltage and
6.1 current

DIFFERENT FORMS OF EMF

6.2 EQUATIONS

6.3

AC THROUGH R,L and C and power

factor

AC through R,R-C and R-L series and

6.4 parallel circuits

SINGLE PHASE A.C.CIRCUITS

6.5

Active and reactive components of circuit.

& apparent power

Generation of poly phase voltages and

7.1 phase sequence

Star or wye (y) connection and delta

7.2 connections
7

POLY PHASE A.C CIRCUITS

Transformer

9.1

10

DC GENERATORS

9.2

Parts of a Generator

9.3

EMF equation of Generator

9.4

Losses and Efficiencies in DC Generators

9.5

Characteristics of DC generators

10.1

Motor Principle, Comparison of motor and g

10.2

Back EMF and Voltage Equation of a Motor

DC MOTORS
10.3
10.4
11.1

11

Generator Principle, Construction & workin

Torque, Armature Torque and shaft Torque

Rated Speed and speed regulation and spe
T vs la, N vs la of A DC Shunt and series
motor

MOTOR CHARACTERISTICS
11.2 T vs la, N vs la of A DC Compound motor

12.1

12

INDUCTION MOTORS

Classification of AC Motors

12

INDUCTION MOTORS

12.2

Single Phase and Three Phase Induction M

12.4

Starting of Induction Motor

12.5
12.6
12.7
13.1
13

SPECIAL PUPOSE MOTORS

ALTERNATOR

Relationship between Slip, Torque

Speed control of an Induction Motor

Universal motors and its specialty

13.2

Stepper Motors and PMDC Motor

13.3

Introduction to servo Motors

Basics Principle & Details of Construction

14.1
14

Power Stages in Induction Motor

14.2
14.3

Stationary Armature & Rotor

Speed and Frequency Relation

PART A
SEMESTER : II

SUBJECT : ELECTRICAL ENGINEERING

SUBJECT CODE : CP15 02 04

CHOOSE THE CORRECT ANSWER

Category

Question
No.

Questions

1
power source is classified into two types __________

A
current source
and voltage
source

2
A

voltage source
The source which supplies in the form of a current is ________
The source which supplies in the form of a voltage is
3
voltage source
__________
4 If the voltage across an ideal voltage source can be specified
independently of any other variable in a circuit. It is called an
__________

independent
current source

dc source
An electric battery consists of a number of ________

The battery converts chemical energy into ______

7 The battery uses _______ source
8 mercury cell is example of _______ battery
A

9
Secondary battery are _________

AC
secondary
non
rechargeable

10 Fuel cells uses __________ fuel

hydrogen &
oxygen

11 The positive side of fuel cell is ________

cathode

1 The two krichoffas laws are _____

light energy

KCL

2 Around any complete loop, the sum of the voltage rises must equKCL

3 All current entering a junction point must equal all current leav
The double arrow indicate that the transformation is
__________

KCL

bilateral

5 The theorem used to find the solution to networks with two or monorton's

6 The specific portion of a network by replacing the remaining

network with an equivalent circuit _________

thevenins

7 To obtain maximum external power from a source with a finite thevenins

B

The study on the electric charges in the static or steady state

condition____________
2 The electric field is the space around is ____________
3 The amount of electric field passing through a surface is calle
Air , hydrogen , mica , transformer oil are examples of
4
____________
A material measures the ability of that material to withstand
5
voltage differences._________
6 The ratio of electric displacement vector (D) in a dielectric
medium to the applied electric field strength ________
7 The unit of premitivity is ____________
8 The Q represents ___________
9 The force of attraction or repulsion states ________law
10 The work of capacitor to _____ the charge

A
A

A
A
A
A
A
A
A

The strength of a magnet lies at the ends ________

electric flux
electric flux
electric field
insulator
conductors

field stregth
farad/meter
volts
fardays law
oppose
base

2 The group of force lines going from the N. pole to the S. pole of
a magnetis called as_____________
magetic stregth
weber
3 . Unit of magnetic flux is _____________
4 Current in a conductor produces a magnetic field. Force that
produces the magnetic field is called as ___________
5 The unit of MMF is ___________
Opposition to the establishment of a magnetic field in a material
6
is called __________
7 Reluctance is denoted by letter _____
8 The symbol of electric field is __________
9 The symbolof magnetic field is _____
10

The magents has ___________ charge

field stregth
weber
field stregth
B
E
E
anod and
cathode

The production of a magnetic field by current in a conductor

________
field stregth
Tape recorders, electric motors,speakers, solenoids, and relays
2
are based on ______
field stregth

. When the current through a coil changes, the polarity of the

3 induced voltage created by the changing magnetic field is such
that it always opposes the change in current that caused it is
_________ law
faradys law

4
A

The Conductor remains stationary and flux linked with it, is

changed__________

5
A
A
A

The types of induced EMF is _______ and _______________

6 The inductance is denoted by letter ________
7 The unit of inductance is ___________

mutually induced
EMF
statically and
stationary
R
ohms

8 If current changes in coil 1, an emf is induced in coil 2.

9
B
A

1 The waveform alternates between two prescribed levels in a se

2

A
B

The curve of the flux density (B) versus the magnetic force (H)
is called _____________

A leading alternating quantity is one which reaches its maximum

or zero value earlier as compared to the other quantity_______

3 A plus (+) sign when used in connection with phase difference

4 a minus(-) sign denotes ___________
5

The simplest case is a resistor in a circuit. The current and

voltage are inphase. The magnitude is ______

6 The power P= ____________

B
B
B
B
B

mutal inductance

field stregth
DC voltage

voltage
lag
lag

VR=IR
Vrms*Irms
inductive
resistance
XC
lags
XL
ohms

7 L represents _________________
8 The inductive reactance symbol is ____
9 AC through pure capacitor current ___ by 90
10 ________is known as capacitive reactance
11 unit of C is _____________
The sum of the conductance and capacitive susceptance
12 phasors is called ____________

13 The phase angle is denoted as ______

14 If XL=XC the circuit is called as __________

inductive
resistance

15 RLC ckt is in resonance Circuit impedance is __________

maximum

10 fr is meant for ________

frequencey

11 Which of this is a Active component ______

inductor

12 Which of this is a Reactive component __________

inductor

13 Power which is actually dissipated in the circuit resistance P=

VI

14 The active power equation is ___________

15 The reactive power is denoted by _______
the power due to inductive or capacitance reactance of the
16 circuit is called ____________

I Cos watts.
P

conductance

C
C
C
C
C
C
C
C
C
C
C

active power
volt ampere
reactive
active power
R

17 VAR is meant for _______

18 Product is neither the real power nor the reactive power, but a
19 The apparent power is denoted by _____
The ratio between actual power to the apparent power is called
20 ___________
active power
21 For a purely resistive load the power factor is ______

1 In a three phase signal the phase shift is _______

lag

90

The similar ends of three coils are joined together at point N is

2 called ________
delta/star
3phase 4 wire
3 The star to star connection is called as ____
system
The potential difference between any line and neutral point
4 gives the ___________
voltage
But the potential difference between any two line gives the
5 ___________
voltage
6 In a star connection system I line =___________
Ivoltage
The dissimilar ends of three phase windings are joined together
7 is called ___________
delta/star

8 In a delta system, the line current is equal to the __________

phase curent

1 Transformer works on the principle of

Flemings left han

3 Transformer cores are laminated in order to

increase power

4 The EMF equation of transformer is

4.44fN

Transformer is a static piece which transforms electric power

5 from one circuit to another
without changing

Frequency

A
A
A
A
A

A Transformer transforms _________

frequency

Flemings right hand rule is applicable to

dc generator

The sole purpose of a commutator in a dc generator is to

The yoke of a DC machine is made up of _______

The commercial efficiency of a shunt generator is maximum cwonstant

The relationship between generated emf and applied voltageEg = V + IaRa

Stray losses consist of ____________

increase output voltage

A
Silicon steel

magnetic and
mechanical
losses
V and Ia

8
9
1
2
3

The internal characteristic of a dc generator is the curve

between
The open circuit characteristics of a dc generator is the cur V and Ia
The external characteristic of a dc generator is the curve be V and IL
A dc motor can be looked upon as dc generator with the powreduced
The induced emf of armature conductors of a dc motor is sinusoidal
The current drawn by a 120V dc motor of armature resistanc20

The shaft torque in a DC motor is less than the total armatu copper losss

The speed of a DC motor is _________

The Ta/Ia graph of a dc series motor is a

The electrical characteristic of a dc motor is the curve betw

torque and
armature current

Which of these types of motor is self starting?

dc motor

7
C
A
A

N=Eb/
parabola from
no load to
overload

2
B
3

Squirrel cage
Those induction motors which employ squirrel cage rotors a
motor
Squirrel cage
Phase wound motors is also called as
motor
synchronous
The speed at which the revolving flux rotates is called _____
speed

The mechanical power available in the shaft produce ____

The slip of an induction motor is given as

rotorresistance starting method is only applicable to _____

motor.

series motor

Which motor is most suitable for vacuum cleaners?

universal motor

The rotor of the stepper motor has no

windings

A stepper motor is a ________ device

pneumatic

rotor torque
(N-Ns) / Ns

One of the basic requirements of a servomotor is that it muloads

Fleming's left hand rule may be applied to an electric generator todirection of rotor r

In alternator, the rotary part is

The frequency of voltage generated in an alternator depend number of poles

armature.

CP15 02 04

current controlled and

both A and B
voltage controlled

none

current source

both A and B

none

current source

both A and B

none

independent voltage souboth A and B

none

batteries

electrochemical
cells

both B and C

heat energy

electrical energy

mechanical energy

DC
wet cell

AC & DC
primary cell

none
dry cell

rechargeable

both A and B

none

hydrogen & nitrogen

oxygen & nitrogen none

anode

both A and B

none

KVL

both A and B

none

KVL

both A and B

none

KVL

both A and B

none

single way

double way

none

thevenins

maximum power
transfer

super position

norton's

maximum power
transfer

super position

norton's

maximum power
transfer

super position

static electricity
electric field
electrostatics

electrostatics
both A and B
electric flux

none
none
none

conductors

dielectric

semiconductor

electric field

dielectric stregnth both B and C

flux density
volts
curent
lenz law
store

premititvity
ampere
indutance
coloumbs law
both A and B

none
both A and B
charge
none
none

magent

poles

none

magnetic flux
ampere

flux density
farad

field stregth
volts

flux density
ampere

premititvity
farad

MMF
volts

flux density
F
B
B

reluctance
S
H
H

postive and negative

premititvity
R
R
R
north and south
poles

electromagetism

premititvity

reluctance

electromagetism

premititvity

reluctance

coloumbs law

lenz law

none

self induced EMF

both A and B

none

mutally and stationary

S
farad

statically and
mutually
I
henry

none
L
volts

none

self inductance

dynamically
induced emf

None

electromagetism

hystersis curve

reluctance

alternating voltage

battery source

None

alternating voltage

field stregth

phase difference

lead
lead

both A and B
both A and B

none
none

VR=RC
VR=RC

none
none

inductive capacitance
XR
leads
XC
farad

VR=RL
VR=RL
inductuve
reactanace
XL
unity
XR
henry

reactance phasor

admittance phasor none

inductive capacitance

inductuve
reactanace

electrical resonance

minimum

unity

higher

resonant frequency

restive frequencey none

capacitor

resistor

none

capacitor

resistor

none

RI

I Cos watts.

P=IR=VI Cos watts.

P=IR=VI Cos watts. P = VI cos

inductance
none
both A and B
both A and B
none

VI
A

reactive power

both A and B

none

volt ampere resistance volt ampere

reactive power
both A and B
L
AP

none
apparent power
S

reactive power

power factor

apparent power

leads

unity

zero

120

60

80

star/delta

none

2phase 4 wire system

star/star
1phase 4 wire
system

current

phase voltage

phase current

line voltage
Iphase

phase voltage
Icurrent

phase current
phase current

star/delta

delta

star

phase voltage

line voltage

Icurrent

none

Flemings Right hand rul mutual induction

none

voltage

current

both voltage and current

reduce hysteresis loss

minimize eddy curre none

4.44fN

4.44f

4.44Ef

voltage

current

all of the above

dc motor

transformer

all of the above

reduce sparking at bru provide smootherconvert the induced ac into dc

soft iron
iron
Eg = V IaRa

aluminium

cast steel

friction and
windage

none of the above

Eg = V

none of these

magnetic and copper

loss

iron loss and

copper loss

mechanical and copper los

E and Ia

E0 and Vf

none of the above

E and Ia
E and Ia
reversed
trapezoidal
240

E0 and If
E0 and Vf
increased
rectangular
220
iron and friction
losses
N=/Eb

none of the above

none of the above
modified
none of the above
5

straight line through out

parabola
throughout

parabola at light loads and a

straight line at over loads

speed and armature

current

speed and torque none of the above

sinle phase induction

motor

3 phase induction
ac motor
motor

field loss
N=Eb .

none of the above

N=.PN

Induction motor
Induction motor

none of the
above
none of the
above

Slip ring motor

Slip ring motor

rotor speed

stator speed

none of the above

shaft torque

gross torque

none of the above

(Ns-N) / N

(Ns N) / Ns

(N Ns) / N

squirrel cage motor

slip ring motor

shunt motor

repulsion motor

hysteresis motor

reluctance motor

commutator

brushes

all of the above

electromechanical

hydraulic

none of the above

speeds

voltages.

frequencies

polarity of induced emf direction of induceddirection of magnetic field.

core.

magnetic field polesnone of these.

speed of alternator

both (a) and (b)

type of winding

Answers

current source and voltage source

current source
voltage source

independent voltage source.

electrochemical cells
electrical energy
DC
primary cell
rechargeable
hydrogen & oxygen
anode
both A and B
KVL

KCL
bilateral
super position

thevenins

maximum power transfer

static electricity
electric field
electric flux
dielectric
dielectric stregnth

premititvity
farad/meter
charge
coloumbs law
store
poles

magnetic flux
weber

MMF
ampere
reluctance
S
E
B
north and south poles

electromagetism
electromagetism

lenz law

self induced EMF

statically and mutually

L
henry

mutal inductance

hystersis curve
alternating voltage

phase difference
lead
lag

VR=IR
Vrms*Irms
inductuve reactanace
XL
leads
XC
farad
admittance phasor

electrical resonance
minimum
resonant frequency

resistor
both A and B
P=IR=VI Cos watts.
P = VI cos
Q
reactive power
volt ampere reactive
apparent power
S
power factor
unity

120

star/star
3phase 4 wire system
phase voltage
line voltage
Iphase
delta
phase curent
mutal inductance
both voltage and current
minimize eddy current
4.44fN
Frequency
dc generator
convert the induced ac into dc
cast steel
constant
Eg = V + IaRa
magnetic and mechanical losses
E and Ia
E0 and If
V and IL
reversed
sinusoidal
20
iron and friction losses
N=Eb/
parabola at light loads and a
straight line at over loads
torque and armature current

3 phase induction motor

Squirrel cage motor

Slip ring motor
synchronous speed
shaft torque
(Ns N) / Ns
slip ring motor
universal motor
all of the above
electromechanical
speeds
direction of induced emf
magnetic field poles.
both (a) and (b)

PAR
SEMESTER :

SUBJECT : ELECTRICAL EN

MATCH THE F
Chapter
s

Chapter Name

Sub Topic
1.1

POWER SOURCES
1.2

2.1

2.2
2

NETWOK THEOREMS

2.3
2.4
2.5

2.6

ELECTROSTATICS AND
CAPACITANCE

3.1

ELECTROSTATICS AND
CAPACITANCE

3.1

MAGNETISM

4.1

ELECTROMAGETISM AND
INDUCTION

5.1

5.2

SINGLE PHASE A.C.CIRCUITS

6.1

7.1

POLY PHASE A.C CIRCUITS

7.2

TRANSFORMERS

8.1
9.1
9.2

DC GENERATORS

9.3
9.4
9.5
10.1

10

DC MOTORS

10

DC MOTORS

10.2
10.3
10.4

11

MOTOR CHARACTERISTICS

11.1
11.2
12.1
12.2

12.3
12

INDUCTION MOTORS

12.4
12.5
12.6
12.7
13.1
13

14

SPECIAL PUPOSE MOTORS

ALTERNATOR

13.2
13.3
14.1
14.2
14.3

PART A
SEMESTER :

SUBJECT : ELECTRICAL ENGINEERING

SUBJECT CODE : CP15 02 04

MATCH THE FOLLOWING

Topic Name
Classification of Power sources

Category

A
A
A
A
A

ELECTRO CHEMICAL PRIMARY AND SECONDARY

BATTERIES

A
A
A
A
A

Kirchhoffs laws, voltage sources and current sources.

Source conversion, simple problems in source conversion.

Superposition theorem, simple problems in super position
theorem
Thevenins theorem, Nortons theorem, simple problems
Reciprocity theorem, Maximum power transfer theorem,
simple problems

1
2
3
4
5
6
7
8
9
10

C
C

Delta/star and star/delta transformation

C
A

Static electricity, absolute and relative permittivity of a

medium, laws of Electrostatics , electric field, field strength,
electric flux density, energy stored in a capacitor.

Question No.

7
8
9
1

A
A

5
6

medium, laws of Electrostatics , electric field, field strength,

electric flux density, energy stored in a capacitor.

A
A
A
A
A
A
A
A
A
A
A
A
Relation between magnetism and electricity, production of
induced e.m.f and current and Faradays laws of
electromagnetic induction

Magnetic hysteresis, residual magnetism, energy stored in

magnetic field- Rise and decay of current in inductive
circuits

Generation of alternating voltage and current

7
8
9
1
2
3
4
5
6
7
8
9
1

A
A
A
A
A

2
3
4
5

B
C
C

2
3
4
1

Generation of poly phase voltages and phase sequence

2
3
4
5
Star or wye (y) connection and delta connections

A
A
A
A
A
A
A
Generator Principle, Construction & working

Parts of a Generator

EMF equation of Generator

Losses and Efficiencies in DC Generators

Characteristics of DC generators
Motor Principle, Comparison of motor and generator principle

C
A

1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
1

Back EMF and Voltage Equation of a Motor

Torque, Armature Torque and shaft Torque

Rated Speed and speed regulation and sped control of D.C.

B
C

2
3
4
5

T vs la, N vs la of A DC Shunt and series motor

T vs la, N vs la of A DC Compound motor

Classification of AC Motors

C
C

2
1

Single Phase and Three Phase Induction Motors

2
3

General Principle & Construction

Starting of Induction Motor

Power Stages in Induction Motor

Relationship between Slip, Torque
Speed control of an Induction Motor
Universal motors and its specialty

C
C
A
A

Stepper Motors and PMDC Motor

Introduction to servo Motors

Basics Principle & Details of Construction
Stationary Armature & Rotor
Speed and Frequency Relation

B
B
B
B

4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
1
2
3

ECT CODE : CP15 02 04

A Questions

B Answers

power source

voltage & current source

battery

DC source

primary cell

Leclanche cell

secondary cell

lead acid cell

non-rechargeable cell.

primary cell

rechargeable cell.

secondary cell

Fuel Cells

Flow Batteries

Anode

Positively charged side

Cathode

negatively charged side

power

watts

Kirchoffs law

KVL & KCL

IR + e.m.f = 0

KVL

Incoming= outgoing

KCL

RL

load resistor
branch current

super position theorem

RTh and ETh

Thevenins theorem

maximum external power

Thvenin resistance

Maximum power transfer

theorem
RL=RTH

types of transformation

Delta/star and star/delta

transformation

electric charges in the static

static electricity

electric field

electric charge

electric lines of force

ELECTRIC FLUX

non-conducting medium or insulator

dielectric

withstand voltage differences

dielectric stregth
Permittivity

capacitor
q
north and south pole

E
store charge
charge
magent

magnetic flux,

electric field strength

unit of magnetic flux

magneto motive force
unit of MMF
Opposition of magnetic field

reluctance
E
B
magnetic field by current in a
conductor

weber
Fm = NI
Ampere(A).

reluctance
S
electric field
magnetic field

two neighboring coils

electromagetism
inductance
henry
mutual inductance

B vs H

hystersis curve

inductive reactance
capacitive reactance

henry
farad

Reactive power

VAR

apparent power

VA

L
inductance

Three phase angles

N
transformer
star to star connection
line current= phase current
Transformer
Step up transformer
Step down Transformer
Current Transformer
Potential transformer
open circuit test
short circuit test
DC generator
DC generator
Brush
rotating part
DC generator
constant loss
Stray loss
Internal characteristics
DC motor

120
netural wire
mutual induction
three phase 4 wire system
delta connection
KVA
N2 > N1
N2 < N1

Measurement of high current

Measurement of high voltage
core loss
copper loss
dynamically induced
Fleming's right Hand Rule
carbon
armature
Eg=V+IaRa
stray loss
mechanical & magnetic losses
E & Ia
DC supply

voltage equation
DC motor
commutator
speed

V=Eb+IaRa
Back emf
unidirectional torque
N=120f/P

Ta/Ia
N/Ta
AC motor

electrical characteristics
mechanical characteristic
Induction motor

Single phase induction motor

self starting

Three phase induction motor

Induction motor
Induction motor
Induction motor
Induction motor
Induction motor
Induction motor
DOL
Star delta starting
Induction motor
Slip speed
Speed
Universal motor
Stepper motor
PMDC motor
Servo Motors
Alternator
Alternator
Alternator

3 stator windings
rotating transformer
elecro magnetc induction
squirrel cage rotor
slip ring rotor
phase wound rotor
rotating magnetic field
starting of induction motor
starting of induction motor
electrical power to mechanical powermechanical
Ns-N
N=120f/P
Both AC & DC
Step Angle
Permanent magnet
Robotics
AC generator
stationary armature
f =NP/120