the gain of an amplifier without feedback is 100 db. if a negative feedback of 3

Question

The gain of an amplifier without feedback is 100 db. if a negative feedback of 3 db is applied, the gain of the amplifier will become ___________

Options:

A . 5 db

B . 300 db

C . 103 db

D . 97 db

Answer: Option D

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Question 7. If the output of an amplifier is 10 v and 100 mv from the output is fed back to the input, then feedback fraction is ___....fed back to the input, then feedback fraction is ___________

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Question 9. If the feedback fraction of an amplifier is 0.01, then voltage gain with negative feedback is approximately___________....

Question 10. When voltage feedback (negative) is applied to an amplifier, its input impedance ___________....

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