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.Management Sciences
Category: Amplifiers with Negative Feedback
If voltage feedback (negative) is applied to an amplifier, its output impedance ______________?
0
A. Remains the same
B. Is increased
C. Is decreased
D. None of the above
The output impedance of an emitter follower is______________?
A. High
B. Very high
C. Almost zero
D. Low
The value of negative feedback fraction is always _______________?
A. Less than 1
B. More than 1
C. Equal to 1
D. None of the above
When current feedback (negative) is applied to an amplifier, its output impedance ________________?
A. Is increased
B. Is decreased
C. Remains the same
D. None of the above
When negative voltage feedback is applied to an amplifier, its voltage gain ____________?
A. Is increased
B. Is reduced
C. Remains the same
D. None of the above
When a negative voltage feedback is applied to an amplifier, its bandwidth_____________?
A. Is increased
B. Is decreased
C. Remains the same
D. Insufficient data
Emitter follower is used for________________?
A. Current gain
B. Impedance matching
C. Voltage gain
D. None of the above
The voltage gain of an emitter follower is _____________?
A. Much less than 1
B. Approximately equal to 1
C. Greater than 1
D. None of the above
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