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Circuits and Circuit Theory MCQs: 30 Questions & Answers in Engineering

30 Circuits and Circuit Theory MCQs in Engineering with answers & explanations. Practice objective questions for competitive exams, interviews & self-assessm… Use the answer toggle below to show or hide all solutions, tap an option to check one question, or open a question for its own page.

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Circuits and Circuit Theory MCQs: 30 Questions & Answers in Engineering

Inductance of a coil Varies

A heater is rated as 230 V, 10 kW, A.C. The value 230 V refers to

A pure capacitor connected across an A.C. voltage consumed 50 W. This is due to

A parallel AC. circuit in resonance will

A pure inductance connected across 250 V, 50 Hz supply consumes 100 W. This consumption can be attributed to

All definitions of power factor of a series R-L-C circuit are correct except

A sine wave has a frequency of 50 Hz. Its angular frequency is _________ radian/second.

All the rules and laws of D.C. circuit also apply to A.C. circuit containing

An A.C. voltage is impressed across a pure resistance of 3.5 ohms in parallel with a pure inductance of impedance of 3.5 ohms,

Aphasoris

At _________ frequencies the parallel R-L circuit behaves as purely resistive.

At very low frequencies a series R-C circuit behaves as almost purely

Capacitive reactance is more when

Capacitive susceptance is a measure of

Capacitors for power factor correction are rated in

For a frequency of 200 Hz, the time period will be

For a sine wave with peak value Emax _________ 8.30. the average value is

For a sine wave with peak value Imax the r.m.s. value is

For the same peak value which of the following wave will ‘have the highest r.m.s. value?

Form factor for a sine wave is

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