If an amplifier circuit has a high quality factor (Q),the bandwidth is
A) large.
B) small.
C) equal to the upper half-power frequency.
D) dependant on the power supply.

Question

Quizplus · Accepted Answer

The quality factor (Q) of an amplifier circuit is defined as the ratio of energy stored to energy dissipated per cycle. A high Q value indicates that the energy stored is much greater than the energy dissipated, which means the bandwidth of the amplifier is narrow. Therefore, the correct choice is B, which states that the bandwidth is small.

If an Amplifier Circuit Has a High Quality Factor (Q),the