Complex AC MCQs
Practice free Complex AC multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 216 questions — no login required.
Question 82easy
If resistance is 20f-a and inductance is 2H in a R-L series circuit, then time constant of this circuit will be
Question 83easy
If a sinusoidal wave has frequency of 50 Hz with 30 A r.m.s. current which of the following equationrepresents this wave?
Question 84easy
The input of an A.C. circuit having power factor of 0.8 lagging is 40kVA. The power drawn by the circuit is
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Question 85easy
The effective resistance of an iron-cored choke working on ordinary supply frequency is more than its true resistance because of
Question 86easy
1n an A.C. circuit, a low value of kVAR turns compared with kW indicates
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Question 88easy
The ratio of active power to apparentpower is known as ..... factor
Question 89easy
All definitions of power factor of a series R-L-C circuit are correct except
Question 90easy
The apparent power drawn by an A.C. circuit is 10 kVA and active power is 8 kW. The reactive power in the circuit is