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The voltage gain of an amplifier with 9%...

The voltage gain of an amplifier with `9%` negative feedback is `10`. The voltage gain without feedback will be

A

`1.25`

B

`100`

C

`90`

D

`10`

Text Solution

Verified by Experts

The correct Answer is:
B
Amplification with `-ve` feedback
Gain `(A.)=(A)/(1+betaA)implies10=(A)/(1+0.09A)impliesA=100`
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