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Analog ElectronicsActive Filters

A band-pass filter has lower and upper cutoff frequencies of 9 kHz and 11 kHz. Its bandwidth is?

  • A1 kHz
  • B2 kHz
  • C10 kHz
  • D20 kHz
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Correct Answer: B. 2 kHz
Explanation: Bandwidth is fH-fL=11 kHz-9 kHz=2 kHz.
Reference: Standard analog electronics: band-pass bandwidth
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