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Circuit Theory – Multiple Choice Questions (MCQs)

61. The "peak factor" (or crest factor) of an AC waveform is the ratio of:
- A. RMS value to average value
- B. Peak value to RMS value
- C. Average value to peak value
- D. RMS value to peak value
62. What is "active power"?
- A. The power consumed by reactive components
- B. The actual power consumed or dissipated in an AC circuit
- C. The power generated by the source
- D. The apparent power
63. The unit of active power is:
- A. VAR (Volt-Ampere Reactive)
- B. VA (Volt-Ampere)
- C. Watt
- D. Joule
64. What is "reactive power"?
- A. The power dissipated in resistors
- B. The power that oscillates between the source and reactive components
- C. The actual power consumed
- D. The total power
65. The unit of reactive power is:
- A. Watt
- B. VA
- C. VAR
- D. Joule
66. What is "apparent power"?
- A. The power dissipated in resistors
- B. The vector sum of active power and reactive power
- C. The power consumed by reactive components
- D. The actual power consumed
67. The unit of apparent power is:
- A. Watt
- B. VAR
- C. VA
- D. Joule
68. The "reciprocity theorem" applies to:
- A. Non-linear circuits
- B. Active circuits
- C. Linear and bilateral circuits
- D. Unilateral circuits
69. What is "linearity" in a circuit element?
- A. Its resistance is constant
- B. Its voltage-current relationship is directly proportional
- C. It stores energy
- D. It generates power
70. What is "bilateral" in a circuit element?
- A. It allows current flow in only one direction
- B. It allows current flow in both directions
- C. It has two terminals
- D. It has no resistance
71. The "Tellegen's theorem" is based on the conservation of:
- A. Energy
- B. Power
- C. Charge
- D. Momentum
72. What is the "quality factor (Q)" of a parallel RLC circuit?
- A. R / (wL)
- B. wL / R
- C. R / (wC)
- D. wC / R

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Circuit Theory – Multiple Choice Questions (MCQs)

61. The "peak factor" (or crest factor) of an AC waveform is the ratio of:

62. What is "active power"?

63. The unit of active power is:

64. What is "reactive power"?

65. The unit of reactive power is:

66. What is "apparent power"?

67. The unit of apparent power is:

68. The "reciprocity theorem" applies to:

69. What is "linearity" in a circuit element?

70. What is "bilateral" in a circuit element?

71. The "Tellegen's theorem" is based on the conservation of:

72. What is the "quality factor (Q)" of a parallel RLC circuit?

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