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Sessional 1 (Tentative) Choose The Correct Answers of The Questions From The Given Options

This document contains a sessional exam with 5 multiple choice questions testing knowledge of electrical circuit concepts like resistors in series and parallel and power dissipation. It also lists 4 topics to be explained in long form answers: 1) Kirchhoff's laws and their explanation, 2) Ohm's law including the expression and limitations, 3) Expressions for voltage, current and power relationships in a 3-phase star connected system, and 4) The expression for converting a star connected system to a delta connected system.

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77 views2 pages

Sessional 1 (Tentative) Choose The Correct Answers of The Questions From The Given Options

This document contains a sessional exam with 5 multiple choice questions testing knowledge of electrical circuit concepts like resistors in series and parallel and power dissipation. It also lists 4 topics to be explained in long form answers: 1) Kirchhoff's laws and their explanation, 2) Ohm's law including the expression and limitations, 3) Expressions for voltage, current and power relationships in a 3-phase star connected system, and 4) The expression for converting a star connected system to a delta connected system.

Uploaded by

ravihbti
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© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Sessional 1

(Tentative)
Choose the correct answers of the questions from the given options-
1) Two equal resistors R connected in series across a voltage
source V dissipate power P. What would be the power
dissipated in the same resistors when they are connected in
parallel across the same voltage source ?
A. 4P
B. P
C. 2P
D. 16P
2) Two identical resistors are first connected in parallel then
in series. The ratio of resultant resistance of the first
combination to the second will be
A. 4
B. 0.25
C. 2
D. 0.4
3) The ratio of the resistance of a 200W, 230V lamp to that
of a 100W, 115 V lamp will be
A. 0.5
B. 2
C. 4
D. 0.2
4) The resistance of 200W 200V lamp is
A. 100 Ω
B. 200 Ω
C. 400 Ω
D. 800 Ω
5) A 10 Ω resistor is stretched to increase its length double.
Its resistance will now be
A. 40 Ω
B. 20 Ω
C. 10 Ω
D. 5 Ω
1. State and explain kirchoff’s laws.
2. State and explain Ohm’s law and write its limitations.
3. Obtain expression for phase and line relationship of voltage,
current and power in a 3 phase star connected system.
4. obtain expression for conversion of star to delta.

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