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husnain

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From: Chichawatni,Pakistan

Registered: 2014-10-03

Posts: 8,129

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Negative Feedback:

Question:
The midrange open-loop gain of an op-amp is 135 dB. With negative feedback this gain is reduced to 72 dB. The closed-loop gain is:

Option A):
72 dB
Option B):
135 dB
Option C):
63 dB
Option D):
207 dB

Correct Answer is Option A):
72 dB

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