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Electrical Network Theorem MCQs

1) An active element in a circuit is one which ………

  1. receives energy
  2. supplies energy
  3. both receives and supplies energy
  4. none of the above
ANSWER
EXPLANATION

2) A passive element in a circuit is one which ………

  1. receives energy
  2. supplies energy
  3. both receives and supplies energy
  4. none of the above
ANSWER
EXPLANATION

3) An electric circuit contains …….

  1. active elements only
  2. passive elements only
  3. both active and passive elements
  4. none of the above
ANSWER
EXPLANATION

4) A linear circuit is one whose parameter ………

  1. changes with change in current
  2. changes with change in voltage
  3. changes with both voltage and current
  4. do not changes with voltage and current
ANSWER
EXPLANATION

5) The number of nodes in below given figures are

Electrical Network Theorem MCQs

  1. one
  2. two
  3. three
  4. four
ANSWER
EXPLANATION

6) The superposition theorem is used when the circuit contains ………….

  1. a single voltage sources
  2. a number of voltage sources
  3. only passive elements
  4. none of the above
ANSWER
EXPLANATION

7) Norton theorem is ……………. thevenin’s theorem.

  1. the same as
  2. converse of
  3. cannot say
  4. none of the above
ANSWER
EXPLANATION

8) In the analysis of a vacuum tube circuit,we generally use …………… theorem

  1. superposition
  2. thevinin
  3. norton
  4. reciprocity
ANSWER
EXPLANATION

9) Norton theorem is ………….. form of an equivalent circuit.

  1. both current and voltage
  2. current
  3. voltage
  4. none of the above
ANSWER
EXPLANATION

10) In the analysis of transistor theorem, we usually uses ………… theorem.

  1. norton
  2. thevinin
  3. reciprocity
  4. superposition
ANSWER
EXPLANATION

11) For transfer of maximum power, the relation between load resistance R and internal resistance r of the voltage source is

  1. R = 2r
  2. R = 1.5r
  3. R = r
  4. R = 0.5r
ANSWER
EXPLANATION

12) Under the condition of maximum power transfer, the efficiency is

  1. 100%
  2. 75%
  3. 50%
  4. 25%
ANSWER
EXPLANATION
  1. 13) The open circuited voltage at the transfer of load R is 30 V. Under the condition of maximum load power transfer, the load voltage will be ……
  2. 30 V
  3. 15 V
  4. 10 V
  5. 5 V
ANSWER
EXPLANATION

14) The maximum power transfer theorem is used in ………

  1. electronic circuits
  2. power systems
  3. home lightning system
  4. none of the above
ANSWER
EXPLANATION

15) Under the condition of maximum power transfer, a voltage source is delivering a power of 3 W to the load. The power generated by the source is ………….

  1. 45 W
  2. 30 W
  3. 60 W
  4. 90 W
ANSWER
EXPLANATION

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