Q. Form factor for a sine wave is
✅ Correct Answer: (C)
1.11
Circuits and Circuit Theory MCQs | Page - 3
Dear candidates you will find MCQ questions of Circuits and Circuit Theory here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Q. Form Factor is the ratio of
✅ Correct Answer: (C)
r.m.s. value/average value
Q. If a sinusoidal wave has frequency of 50 Hz with 30 A r.m.s. current which of the following equation represents this wave?
✅ Correct Answer: (A)
42.42 sin 3141
Q. If resistance is 20 Q. and inductance is 27 in a R-L series circuit, then time constant of this circuit will be
✅ Correct Answer: (B)
0.1 s
Q. If two sine waves of the same frequency have a phase difference of JT radians, then
✅ Correct Answer: (C)
when one wave reaches its maxi¬mum value, the other will reach its minimum value
Q. If two sinusoids of the same frequency but of different amplitudes and phase angles are subtracted, the resultant is
✅ Correct Answer: (A)
a sinusoid of the same frequency
Q. In a circuit containing R, L and C, power loss can take place in
✅ Correct Answer: (C)
R only
Q. In a highly capacitive circuit the
✅ Correct Answer: (C)
reactive power is more than the actual power
Q. In a loss-free R-L-C circuit the transient current is
✅ Correct Answer: (C)
sinusoidal
Q. In a parallel R-C circuit, the current always _________ the applied voltage
✅ Correct Answer: (B)
leads
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