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Electronic Devices & CircuitsAmplifier Fundamentals

A voltage gain of 100 corresponds to approximately how many decibels?

  • A20 dB
  • B40 dB
  • C60 dB
  • D100 dB
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Correct Answer: B. 40 dB
Explanation: Voltage gain in dB is 20 log10(Av). For Av = 100, 20 log10(100) = 40 dB.
Reference: Standard electronics: decibel voltage gain
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