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Complex AC MCQs

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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 19easy

At series resonance, the voltage across L or C is

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Question 20easy

The Q factor of a coil is resistance of coil.

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Question 21easy

An R-L-C series circuit is connected to a 200 V a.c. source. If Q factor of the coil is 10, then voltage across C at resonance is

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Question 22easy

At parallel resonance,

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Question 23easy

A series resonant circuit magnifies

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Question 24easy

When supply frequency is less than the resonant frequency is a parallel a.c. circuit, then circuit is

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Question 25easy

Dynamic impedance of a parallel tuned circuit is

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Question 26easy

A parallel resonant circuit magnifies

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Question 27easy

When the supply frequency is more than the resonant frequency in a parallel a.c. circuit, then circuit is

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