31. 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
32. Emitter follower is a …………… circuit.
(a) voltage feedback
(b) current feedback
(c) both voltage and current feedback
(d) none of the above
33. If voltage feedback (negative) is applied to an amplifier, its output impedance ……..
(a) remains the same
(b) is increased
(c) is decreased
(d) none of the above
34. When negative voltage feedback is applied to an amplifier, its bandwidth ……..
(a) is increased
(b) is decreased
(c) remains the same
(d) insufficient data
35. An emitter follower has ….. input impedance.
(a) zero
(b) low
(c) high
(d) none of the above
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- Amplifiers » Exercise - 126. When voltage feedback (negative) is applied to an amplifier, its input impedance ....... (a) is decreased (b) is increased (c) remains the same (d) none of the above
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