An amplifier has a dc gain of . It is to be used with feedback to provide a nominal gain of 3. What feedback factor, , should be used? What is the resulting variation in closed loop gain if varies by...

An amplifier has a dc gain of . It is to be used with feedback to provide a nominal gain of 3. What feedback factor, , should be used? What is the resulting variation in closed loop gain if varies by %?

Consider an amplifier with a transfer function What is the approximate phase margin if this amplifier is to be used with feedback to realize a closed-loop amplifier with a gain of 10?

A s( ) 103 1 s 104 ( ) + ⁄ 1 s 107 ( )