Electrical Engineering Mcqs – MCQs

110 questions. Click to practice.

Correct options are highlighted when revealed.

1.How is the power factor of an inductive circuit commonly enhanced?

2.Which component in an AC circuit allows all the DC circuit laws and rules to be applicable as well?

3.Where is the most effective location to place a capacitor in relation to an inductive load?

4.Which of the following expressions correctly represent the power factor in an electrical circuit?

5.What happens to the impedance of a series resonant circuit at resonance?

6.If the phase difference between the voltage and current waveforms in a circuit element is 30°, what is the necessary condition for this to occur?

7.Among waves with identical peak amplitudes, which type possesses the greatest root mean square (RMS) value?

8.At which phase angle between voltage and current does a circuit element consume the minimum amount of power?

9.If the maximum amplitude of a sine wave is 200 V, what is its average (mean) value over one complete cycle?

10.If a sine wave has a period of _____ seconds, what is its frequency?