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Analog ElectronicsNoise in Analog Circuits

The thermal-noise mean-square voltage of a resistor over bandwidth B is proportional to?

  • A4kTRB
  • B4kT/(RB)
  • CR/(4kTB)
  • DB/(4kTR)
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Correct Answer: A. 4kTRB
Explanation: The standard resistor thermal-noise relation is mean-square voltage vn^2=4kTRB.
Reference: Standard analog electronics: resistor thermal noise
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