An OP amp has an open loop gain of 1,00,000. If the feedback fraction is 0.02, the approximate closed loop gain is (a) 1 (b) 1,00,000 (c) 50 (d) 0.02
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The closed loop gain Ag = G/(1+G*f)

Where G is the open loop gain and f is the feedback fraction 

So Ag = 49.975
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