Two amplifiers are operated at the same center frequency f0

Two amplifiers are operated at the same center frequency (f0). Which of the following statements is true?

A) The amplifier with the higher roll-off rate has the wider bandwidth.

B) The amplifier with the lower roll-off rate has the wider bandwidth.

C) The bandwidth of each circuit is not related of its roll-off rate.

D) The bandwidth of each circuit equals the product of its voltage gain and roll-off rate.

Solution

B) The amplifier with lower roll-off rate has wider bandwidth.

Higher the frequncy the lower roll off rate , high frequency more performance.