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Analog ElectronicsOperational Amplifiers

For an ideal non-inverting op-amp with Rf=47 kOhm and Rg=1 kOhm, the closed-loop voltage gain is?

  • A47
  • B48
  • C-47
  • D-48
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Correct Answer: B. 48
Explanation: For a non-inverting amplifier, Av=1+Rf/Rg=1+47=48.
Reference: Standard analog electronics: non-inverting amplifier
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