A BJT amplifier has been analyzed and found to have lower cutoff frequencies of 3.3 kHz, 5 kHz, and 78 Hz. It was also found to have upper cutoff frequencies of 120 kHz, and 437 kHz. What is the overall bandwidth of the amplifier?
A) 115 kHz
B) 432 kHz
C) 119.92 kHz
D) None of these is correct.

Question

Quizplus · Accepted Answer

The overall bandwidth is the difference between the upper and lower cutoff frequencies. The lower cutoff frequency is 3.3 kHz and the upper cutoff frequency is 437 kHz. Therefore, the overall bandwidth is 437 kHz - 3.3 kHz = 115 kHz.

A BJT Amplifier Has Been Analyzed and Found to Have