Electrical Circuits MCQ Question with Answer

Electrical Circuits MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

Question No : 8
VL= VCin a series RLCcircuit when

The value of the impedance is minimum

The power factor is zero

The current leads the total voltage by 90�

The total voltage is zero

Question No : 9
At what frequency will an inductor of 5mH have the same reactance as a capacitor of 0.1 F?

7.12 kHz

7.12 Hz

7.12MHz

7.12 GHz

Question No : 10
Property of an electric circuit that dissipates electric energy

Reactance

Impedance

Resistance

Conductance

Question No : 11
What is the other name of relative permittivity?

Dielectric strength

Potential gradient

Breakdown voltage

Specific inductance capacity

Question No : 12
In a series RLCcircuit

The current lags VLby 90�

The current leads VLby 90�

XL leads Xcby 90�

Z = jXL at resonance

Question No : 13
Resistor with colored bands in the body

Wire-wound resistor

Carbon-composition resistor

Potentiometer

Rheostat

Question No : 14
In a resonant circuita if Q ? 10 resonant frequency _______ bandwidth.

Bisects

Exceeds

Is less than

Is equal to