Amplifiers – 40

40. In the expression for voltage gain with negative voltage feedback, the term 1 + Am mv is known as ……..

(a) gain factor
(b) feedback factor
(c) sacrifice factor
(d) none of the above

Answer

Answer : (c)

Explanation

Explanation : No answer description available for this question. Let us discuss.

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Amplifiers - 38
Amplifiers » Exercise - 138. The approximate voltage gain of an amplifier with negative voltage feedback (feedback fraction being mv) is ......... (a) 1/mv (b) mv (c) 1 /(1 + mv) (d) 1 - mv
Tags: mv, amplifiers, voltage, feedback, exercise, gain, negative, electronics, engineering
Amplifiers - 45
Amplifiers » Exercise - 145. If the voltage gain of an amplifier without feedback is 20 and with negative voltage feedback it is 12, then feedback fraction is ........ (a) 5/3 (b) 3/5 (c) 1/5 (d) 0.033
Tags: feedback, amplifiers, voltage, exercise, gain, negative, electronics, engineering
Amplifiers - 23
Amplifiers » Exercise - 123. If the feedback fraction of an amplifier is 0.01, then voltage gain with negative voltage feedback is approximately ....... (a) 500 (b) 100 (c) 1000 (d) 5000
Tags: amplifiers, feedback, voltage, exercise, gain, negative, electronics, engineering
Amplifiers - 47
Amplifiers » Exercise - 147. An amplifier has an open loop voltage gain of 1,00,000. With negative voltage feedback, the voltage gain is reduced to 100. What is the sacrifice factor ? (a) 1000 (b) 100 (c) 5000 (d) none of the above
Tags: voltage, amplifiers, gain, exercise, negative, feedback, sacrifice, factor, electronics, engineering
Amplifiers - 28
Amplifiers » Exercise - 128. Negative feedback is employed in ....... (a) oscillators (b) rectifiers (c) amplifiers (d) none of the above
Tags: amplifiers, exercise, negative, feedback, electronics, engineering

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