A voltage follower amplifier comes to you for service. With a sine wave input of 1 V, the output is squared off at approximately 30 V peak- to- peak. The most likely problem is
A)the input is shorted to ground.
B)open feedback loop.
C)the output is shorted to ground.
D)no dc supply voltage.

Question

Quizplus · Accepted Answer

An open feedback loop in a voltage follower amplifier would cause the amplifier to operate at its maximum gain, leading to a squared-off output due to saturation at the power supply limits, which matches the described symptom of a 30 V peak-to-peak squared-off output from a 1 V input sine wave.

A Voltage Follower Amplifier Comes to You for Service