B The gain of an amplifier without feedback is 50 V/V whereas with negative voltage feedback, it falls to 25 V/V. If after a period of time, the amplifier gain falls to 40 V/V, find the percentage reduction in overall gain: (i) Without feedback. (ii) With negative feedback.

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B The gain of an amplifier without feedback is 50 V/V whereas with negative voltage
feedback, it falls to 25 V/V. If after a period of time, the amplifier gain falls to 40 V/V, find
the percentage reduction in overall gain:
(i)
Without feedback.
(ii)
With negative feedback.
Transcribed Image Text:B The gain of an amplifier without feedback is 50 V/V whereas with negative voltage feedback, it falls to 25 V/V. If after a period of time, the amplifier gain falls to 40 V/V, find the percentage reduction in overall gain: (i) Without feedback. (ii) With negative feedback.
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