The Q of a band-pass filter depends ona.the center frequency and the bandwidthb.only the center frequencyc.only the bandwidthd.the critical frequencies

Final Answer

The correct answer is a. the center frequency and the bandwidth.

Explanation

The Q factor, or quality factor, of a band-pass filter is a measure of how selective the filter is regarding the frequencies it allows to pass. It is defined as the ratio of the center frequency (f₀) to the bandwidth (BW) of the filter:

$Q = \frac{f_0}{BW}$

Where:

• $f_0$ is the center frequency of the filter,
• $BW$ is the bandwidth (the difference between the upper and lower cutoff frequencies).

This means that both the center frequency and the bandwidth are essential in determining the Q factor. The other options do not accurately capture the relationship between the Q factor and the characteristics of the band-pass filter.