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Electrical Circuits MCQ Question with Answer

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

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Question No : 36
An intermittent and non-symmetrical alternating current like that obtained from the secondary winding of an induction coil

Faradic current
Transient ac current
Inductive current
Capacitive current

Question No : 37
The value of temperature coefficient ( ) is dependent upon

The nature of material and temperature
The length of material
The cross-sectional area of the material
The volume of the material

Question No : 38
At what frequency will the current in a series RLCcircuit reach its maximum value for an applied voltage of 15 V with R = 500 a L = 100 H and C= 0.001 F?

503 kHz
403 kHz
603 kHz
303 kHz

Question No : 39
If two equal resistances connected in series across a certain supply are now connected in parallel across the same supplya the power produced will be _____ that of series connection

One-half
One-fourth
Two times
Four times

Question No : 40
The voltage lags the current by cycle in a

Purely resistive circuit
Purely inductive circuit
Purely capacitive circuit
Circuit containing resistancea capacitance and inductance

Question No : 41
What is the half-power bandwidth of a parallel resonant circuit which has a resonant frequency of 3.6 MHz and Q of 218?

1.65 kHz
16.5 MHz
16.5 kHz
165 kHz

Question No : 42
Which one of the following elements serves as a protection against overload?

Fuse
Switch
Resistor
Relay