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43 views13 pagesCurrent Electricity Test
The document discusses various concepts related to electrical circuits, including resistance, current, and voltage in conductors. It presents multiple scenarios and questions about the behavior of electrical components under different conditions, such as temperature changes and configurations. The content appears to be a mix of theoretical explanations and practical problems related to electrical engineering concepts.
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0% found this document useful (0 votes)
43 views13 pagesCurrent Electricity Test
The document discusses various concepts related to electrical circuits, including resistance, current, and voltage in conductors. It presents multiple scenarios and questions about the behavior of electrical components under different conditions, such as temperature changes and configurations. The content appears to be a mix of theoretical explanations and practical problems related to electrical engineering concepts.
Uploaded by
sonisarthak505Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF or read online on Scribd
/ 13
The V-I graph fora Condor at temperadure <
1) T and T me oe in ho figuns Gy is proportional
Vv xz Assume, Resistance
i Cos26—(b)- Sin 8 5S Teper aki)
cw) Cte dd) tan® e {
fs has Uniform GOSI-Section « Resistivity
cylindrica Conductor he
’ , q mmalerial increases Amsco from wy Lift ont phe
cokd end. Ya Constant cpsany frond noon itaats
sught end- ‘on distance % from Sef en 9
ix E, which of Jka following
a Ss
7 oO = °
° — a ‘in a metallic Conducor of non-
3) A Stead cuoun fe quantity [quankhes Constant
_ section.
Uniform Cross= Se “he Condudor 16/OXt
along fs ting a and buf speed.
Oa!
speed only
° att and dsupt speed
cone On} iffe al
4) Two resistances R, ane of ta meet Cines
Ths temperodine Ts =p . The susistence of the Senes
af 3h rae i! and ky Will not change colt temp.
Im bIN ITO}
iL R/R equals xu Mae
eo re) dD) Fe
@ /p ® a AB
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5) a, wma Conetuclor vou wilh dime t ag T=?t te
cheoge Meewng. T H i ampere and t tn seconcu. +E lech
» ough a Section Y IK Concluctor iwe
t=2gec to 4, = re a ae ‘Oo
@ {0c (b) 24¢ C) 33¢ (a) 44“
Q Th order to quadscurple tho veosishanwe YC vniform WPt
a part of ih longi cwad On for my cheiched 2600 Ta
the original
final Length 9, #, jode O15 Hoes
Length + She pod of Ie lobe COU frachon equal to
1
qv @& 6 ae
©O we @ 4 a=
2 A battery Ly Connectecl
and 8 4 eadrufol - (which
heat dhe Covent clonal
ely (b) 4 —-—}
Le i | *
F O-« 1
40 a Uniform sae wir AB
one of Ia gaps holow shaw
T veer cilorg AB?
A 8B
= J
©) Oe
A 8B a
8) A Cvbwnt T Rees Aocough a Uniform Lobe of Aomeler
d whon to moan electetn cbu{t veloc ow. Re some
quvunt “wily flow spoeough a Wwe % diomeltr A/a
made of jhe some medial if the mean cbeigh reteccty
of Sho elecbon 4 aap
(a) v/+ wy of 7°
A wire ho non-uniform Ciodf-sechonh .A S
9 poo Spouaugh tt. The bef speed af elocboru 7 Doin
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8
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aj sxessfamee of all the wires ba
Rk. eptuvalant 900 hy fance We Hee adja Ont
dot
ma: 8 a nen n FIITIEE
git Le
@ None
@ He / aN
a batty of 24 (ls each of emf [-5v and intemal retih
pn is co Conneded tn des " send ths nie
count through & [22 sesistor. The Correct arrangement
cotls will be
of cot Connected o paral
9 vous of {2
y 3 vows Of @ cls connec por ay, av
g Fyows 0 6 cally Connedicd th parallel ra
g all of thule. a
33) The internok Seosstances of two els shown wu O42 and
foo 0 Re ee tke potenkak diferente across the cll
@S wilt be zero () A wil) be zero :
(© 4 ond B will be 2V @ A Wil) be 72V and Boil ke cw
Tho egual emf and o internal sonstanes % and ¥,
“ ay f ts "eo: On Connecting Shey Combina-
tion Ly an. excernal seorutonce &, HU observed that hs
polinh ad cbif ference ouoss the first Colt becomes zero. The
Valus of R Witt be
@aw O& Wh
*4) Tf ty dtu Cr uur Shown below , the
if (5 and Vp and
© ats ) mh
internal venshance
Va wu the pofenhals
of the 6
a P ang @ © seaspechvely 1 What 4 the potrniial differ
bud the point “P and @? Saad
sero fe) av 7a)
¢
ON (ary, @ 45 vals (We) See |
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_ FIITIEE charging (vith a voltage of !2°5 vols aoe
Infermal relishance' of tho Storage be & 12. Won
te Cheaging Cevodrt 4 0-5A, Sho emf Of SAL Storage
b 4’
(Q I3v (b) 12-5V
26) Eight al marked Ito 0, each f emf SV and inlerneg
52.2 ant Connected . What ti reacting of idtal
]© 12Vv @ I-sv
resistance hat -
Vaetmaley ptt B
@ +0ov (b) rev +e aT
Lae.
© 5v @) zere : 5
91) Tha cleat pole version axdund a Single oted Sep
Contcuning Qn ideal b and ena OY mor j0SIStom , T
ena JA ppd in cvuuh, is Craw Grneot F
have
(@ +wo ysistors Gnd {use
sstoy ond Thret be
Ar
i : E and inlernak susistonte y we
28) N idenkcoh ot Oe ee nally ave wrongly conneded
‘ ‘jl mals av conheded |
pa a aoe dion- (0SN). Lab Ee br She emf of resty
(ae and sto be ur ia aesithan(e-
baling = (N- (e) R= WWE, BAe
=(N-nJE v7, =(N-yr. * .
=O (d) Be =W- WE, r= Nr
Eo
io £, =NWE , = Nv
29) Cakcusate Fa Caromnt through 6¥ balliy
@ wr wo 4 {ove
ae 4
© WA ( None iy mi
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ud nNO- 1H
having inlonet Fusislan(e. Conneded tn seves FINE Cols
Mrminals oF Sho ballevy ae short cr ek
The 4
cauount T meqsuird . Which One of ths graph beleus
fe Core yelahonship bla Tand » 9
shows 4
xt C
o ae “LT, ¢
—2,
Lvoblem, ym colt ten ‘Uonneckel.{ in paral
ths above AEA have
3s) In ] b
(v stead of ™ sen) lohich 0
hee tre reolacttonship ss tofal Lyvunt’ I and n?
Caen
Vo AE,
39 In the tie at shown a the cusseond thot fleur fom
tho switch S wu Losecl 48
q to b toh
@ -15A | (b) + BA xT Scion =
© thon @) --OA a rvpe F288
33) For She Uyusk Shown, 4 shovhng * win of "4 igble scosishon
if adelod 40 dhe circuit bfto points [A and B. Fi shorlng
lone a deLed, bulb 3 goed, ouf. Which Lares . She Grud
byighien 2 ALS busbs Cre idlenhicad -
@ Only bape Only hudb +
buths 204 @ only bulbs 28+
W Ta Cwoents in 42 Gnd Be reais UE a0
() 5A, OF
@ 2-5A,0A
QO 9. @ 5A, 8
@ 25m, ton 5A, BA .
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FIITIEE too GE, and & (E78) - Ao nul point iy
UG C when the galvonomeltr ib Connect to E, .
! i Connecleo!—to-E, . When A& 9 aD Vonomafey
iL Connedeal 10 Er, the null point Will he
, pay
@ to the LfF fC Ot the right Y C
A
© arc mw te — & heiohoe om AB ney 8
36) A xensbonce of 4.2 anda wire of Lngih °m and s¢06!sbwv-
5.2 art joined mm Senes and Connect fo & Cll emf. lov
and tnkrnal sosistonce 12. paralled Combination Of two
idonkcal @Lls ts balanced across 300cm Of He volt. “The
emf E Of each all 4“
@ 15Vv () 3Vv
©) 0o-6tV @)}-33v
3p Polmhomefer wane of Lonel tm U Conneded th Sen; wif
Ago susistone Gnd 3V betty. If 0-2 mVfam 4
the polenbal Grancl gracuent , Jain Seasistance of the poftn- |
\ Wore
oe ® 192 9592 W 690
fe P=92, Q=IIR, R=4R and seo,
39) Th wheatttones bridg ;
How much sesistance must be put in paralleg to the
seonstance S to balance the bridge 2 |
(a 242 bh) H/o © 264.2 & IBF |
fenhomeler experiment, it 44 feo found thatno
es Patten Trough i galvanomeler © fou the”
a, gho Coll ae comecttol across O-52m of Tho |
terminals wire, Jf tho alk is Shunied bya susistance
coe balane U Obteuned Won Tho Ce Uf Conneded
of tho wie. Find tha intemal susicfonce ¥ the
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40) Th the yven polenhomeltr dru moth
of ths ae AB ik am and seosistance ie R= AIME€
ac fer no cleflortton tn gadvanom efter ia
Longlh '
@ am ) 1-8m i Sv Y=O-5
© clgpendint on t, @ None I 7 8
av, %
4) F the two bulbs of Lualtage #5 and 100 xspevely
h to @2oV are connected in serves With the z
rato, thin (ohich bulbs Will fuse SUphly
©~ None W Both of Fore
@) 100W bulh Was bulb
jhe Some mattnial have ace
o Wires A’ and wo '
8 in p 122 Tend seach Tha xabto 9:1.
The two Wires at Connected in parallel across ab
Tho vedio of tes hoot poduusd in A’ to the heat produ
in ‘8 for tha Same time Yb
@ 3:2 (b) 22! ft 1:8 wg &:)
‘ ( itched On, the Cont
wren an electne heater 1 suoitched ,
P ctouain through it (D4 plotied against time (4), Taking
a oe the variation of zesistonie Lait, temperate
hich of Hee represen the renting
llowaing best veep
fh = Tr ae
@ y o/- a Yi
4 —7 +t t
44) what wilt happen whon a 40W),220 Vor Lamb and
Joo W, 2aoveet Samp oe Conneckal in Sen’ed across FOV
ae amp will fase () 40 Watt Lamp will fuse
(9 otk Lamps wil fuse — ) Nekthar Lamp val fuse.
Scanned with CamScanner 45) Too bulbs X and Y having Ha Same asap Yahi
FIITIEE ancl of poutr 40W and 60W stespechv
Connected th seney Aol a polenhas difference of 2001
then, :
@ x ‘ath glaw brighter [1 40x)
® Resistemee of YU goede fathanX _|
© heat pro duued tn ¥ willbe guaty | 300v éow(y)
than X [* 4
@ Voltage
than a '
46) Th the Grau @ shown FR figure, tho hoot produce
6 2 svesistance clue to Count {ovo in tk W 60
Calorie per second: Tha haat gensraser aGoss 22 ressistoe
per second wild be : —~W
(a) 30 Calorie (sec © 60 caltt/see—} 2 3
je 10 catlone [Lee (4) 120 cal Orie [4ec JAY —
49) Tha susstonce of header Cock 4 los Asusistane R 4
Conneckead iy pay wilh ub Cind ff Combination us
‘sine in Series Ua a supsfance of S12 to g 220V mam
i Tho booty operodes Lith A pocutr oF NOW. To volun
of R i Ohm 4 eo} i.
@ 22 © oa © ve OBOE ated
fly shown tn ‘quer hay emf & and inirnal seosistanc
48) cobant in: the ie fi can be Mh ied by sliding tae :
contod TS dha ab any instond Cudunt i pocugh
gfe Urcuit BT, potmkad difference [49 Jtiminods of Cond i
Vv, thames pour gersraueel in Fhe cll 41 equas 4 fraction
of fotat ebctical powcr gervralel in it thon which of Ihe
FO !
lowing ph is cod | —
de 4 fr
@) OY dk @ Both (@ &&) Jp
iz zo conc
drop in X Glld be greatr
Scanned with CamScanner | ug Thy sufistance Of tho fl :
with he ene tee ao tomb increases
nated (O0W, 220V - ts Connected Ae os mee
Tf the vothage cbrops by 1o% Jhon the power tang
wild be
@ sow WIN © Bw 90 and low @ Bw BIW 4 dow
sq) Two hale A and & ae in porcllel avoy tho supp
Hooter A adaamreirane in 20 minuses Grol
(000 KT in (Orn . Tho seonstonce OA
B prod. ame heals Oe Connected in Senied ee
total hoot prodaued in Sminufes
joo.0 - If
otlage, Jhon
Le iy Took © S0KT @) loKT
snitch Ih hoxeol firgtanel (6 kopt
hou shown,
cloud foro 0n§ finns « Now S; ib Cored, Just aftr that
Cc
may Re caoxant HoensD a fee S
Ww OF fowords Loft reer Te
i =
Qt towards vg
Ri @) 2e
ayo ideal and of equal emfs.
@Y zero Fig,
: ale
OR Xi one 5a " capacitor jy Cond seogittance of the
oe ee frat joined to ¥ and aon =. After
a Song fim, total hoot pro in oes Gal
©) ejual to ‘tha enorgy finally stored
in tho capadty a
( hw of Sha energy finally stored :
tn the capac, aly cyouel in oe
tw nor in
& twice the ennyg tw
the jfore ns
O4 ae envrt finobly stosed in tho capacitor.
93) A’ capacitor bf capacitance aur Ul fivat changed by conneding
he tte badiry: by lang. Kay Ky > Hen it Ghsolfontel
Scanned with CamScanner # ig. ctisch ecye dl jhrough 2-0 and 42 sutishom by
FIITIEE Opening K, and closing tho ky K.. The fotce
Energy cLissipaicd by Sho 2.2 resistor ib epual fo
Q@) oO.5ms & 0-05mT J tar
kK
© Osmo (d) None ! Hi
54) A Capacitor ik changed Using KN ew
an external bettony wilh en
j in sens. Tho dashed ine shoot She Vorahon
of aE coite sped fotime - Z tha svnitance it changed
to ax , Sho nous gruph a a
(a) Pp (b) @ vy J
OR @s L -_ :
55) Consider the Shown nefwork, th capacitor G(= 6.1) hes an
inihol charge = 30e uc, C= 4uF and R= G02. Tiki
G4 Unchargeat . ALE=O tho Susitth 9 S 4 loved. Obtaun
the charge oh Clnag & t= 1928
—o-—AM—,
(a) 10 (bh 16 G al eo |
GQ
Gu @ | \
56) Th the given arrangement, the s20dting “fone 4
Some in ear Core Whom either K; “I cloted. Tha
seoading 4* Quede ul ; et
eee be a
© Fy @None | @ ie
© baja Not suffice ’
A irtangle ig construded Using ths wires A&,8¢ And cA
a came” madtriak And of resistanre a, 2K and 3% respect
of other caire Of resishanie