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Discussion

An R-C coupled amplifier has mid-frequency gain of 200 and a frequency response from 100 Hz to 20 kHz. A negative feedback network with β = 0.2 is incorporated into the amplifier circuit, the Bandwidth will be

  • A.50 kHz
  • B.20 kHz
  • C.100 kHz
  • D.infinite

Answer: C

B.W. = fH' - fL' .

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