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Analog Electronics - Engineering

Q1:

An engineer designs an amplifier to have a voltage gain of 60, but when constructed it only had a gain of 50. What percentage of feedback will cause oscillations?

A 0.1%

B 0.5%

C 1%

D 2%

ANS:D - 2%

A * beta = 1 for oscillations.
So,
50 * beta = 1.
Beta = 2%.