Operational Amplifiers - Technical MCQs

Q1:

fbq18_1007.gif The voltage gain of the amplifier in the given circuit would increase if ______.

A the feedback resistor was decreased in value

B the input voltage was increased

C the input resistor was increased in value

D None of the above

ANS:D - None of the above

Gain = vout/ vin= 1+ Rf/Rin, when Rin increase Gain decrease, Rf increase Gain increased.