Operational Amplifiers - Technical MCQs

Q1:

The magnitude of closed-loop voltage gain (Acl) of an inverting amplifier equals:

A the ratio of the input resistance to the feedback resistance

B the open-loop voltage gain Aol

C the feedback resistance divided by the input resistance

D the input resistance

ANS:C - the feedback resistance divided by the input resistance

Inverting gain = -Rf/R1.