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 : 22
In a series RLCcircuit

Increasing the frequency decreases the resistance

Increasing the frequency increases the resistance

Both XLand XCchange as frequency changes

Impedance will always decrease

Question No : 23
A series RLCcircuit has a ______ power factor at its half-power points

Unity

Leading

Lagging

Either B or C

Question No : 24
Kirchhoff�s laws (KCL and KVL) are applicable to

DCcircuits

ACcircuits

DC as well as AC circuits

Passive networks alone

Question No : 25
A tank circuit is a

Parallel LC circuit

Series LCcircuit

A resonant circuit

A non-resonant circuit

Question No : 26
A capacitive load always has a ______ power facto

Leading

Lagging

Zero

Unity

Question No : 27
What is the temperature coefficient of the resistance Eureka?

Infinity

Negative

Almost zero

Positive

Question No : 28
As applied to a series RLCcircuita bandwidth means

The frequency range for maximum power transfer

The difference between the highest and lowest frequencies of the oscillator

The separation of the half-power points

The frequency at which XL= XC