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Electronics Amplifier - Questions and Answers

Practice questions on Electronics Amplifier.

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1. In a transistor amplifier, power gain is
A.
B.
C.
D.
Explanation:
2. The characteristics of an amplifier depend upon
A. passive components
B. operating point
C. input signal
D. transistor parameters
Explanation:
3. If A1 and A2 are the gains of two amplifiers, the overall gain when these two amplifiers are cascaded is
A.
B.
C.
D.
Explanation:
4. The gain of an RC coupled amplifier at upper cut off frequency is given by
A. times the mid-frequency gain
B. a times the mid-frequency gain
C. times the mid-frequency gain
D. 1/2 times the mid-frequency gain
Explanation:
5. In a RC coupled amplifier, the coupling capacitor
A. prevents ac component of the output of the first stage from reaching the input of the second stage
B. prevents dc component of the output of the first stage from reaching the input of the second stage
C. prevents ac component of the output of the second stage from reaching the input of the first stage
D. prevents dc component of the output of the second stage from reaching the input of the first stage
Explanation:
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