Mathematics · Electronics
An R-C coupled amplifier has a mid-frequency gain of 400. Its upper and lower 3 dB frequencies are 15 kHz and 100 Hz respectively. If a negative feedback with β = 0.01 is incorporated in the amplifier circuit, determine the gain with feedback Avf and the new bandwidth BWnew.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Avf = 100 and BWnew = 74.98 kHz
- 2Avf = 80 and BWnew = 55 kHz
- 3Avf = 80 and BWnew = 74.98 kHz✓
- 4Avf = 100 and BWnew = 55 kHz
Correct answer
Avf = 80 and BWnew = 74.98 kHz
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