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Electronics and Communication Engineering (ECE) : Analog Electronics - Quiz(MCQ)
What is quiescent point or Q-point?
A)
The point of V-I graph where slope is 0.5
B)
The point at which current equal to voltage
C)
Operating point of device
D)
The point at which device have maximum functionality

Correct Answer : Option (C) :   Operating point of device

Explanation : Quiescent point of a device represents operating point of a device. For a diode quiescent point is determined by constant DC current through the diode. The Q-point is the DC voltage or current at a specified terminal of an active device with no input applied. A bias circuit is used to supply this steady voltage/current.

Recently Updated in Analog Electronics Questions
A junction Field Effect Transistor can operate in
A)
depletion mode only
B)
enhancement mode only
C)
depletion and enhancement modes
D)
neither depletion nor enhancement modes

Correct Answer :   depletion mode only

In a base driver amplifier the voltage gain is the ratio of
A)
ac emitter voltage to ac base voltage
B)
ac collector voltage to ac base voltage
C)
ac base voltage to ac emitter voltage
D)
ac collector voltage to ac emitter voltage

Correct Answer :   ac collector voltage to ac base voltage

In a CE amplifier it is desired that the signal should be able to swing equally in both directions. Then the Q point should be
A)
at the centre of dc load line
B)
at the centre of collector voltage
C)
at the centre of ac load line
D)
at the centre of collector current

Correct Answer :   at the centre of ac load line

ECE MCQ's

Power Electronics
Digital Electronics
Analog Electronics
Microprocessors
Radio Receivers
Signals and Systems
Satellite Communication
Communication Systems
Microwave Communication
Automatic Control Systems
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