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# Solution: What is the rms noise voltage (µV) at the input to this amplifier

#### Problem Statement: Principles of Communications

Noise Problem Solving

An amplifier operating over the frequency range from 450 kHz to 460 kHz has a 100kΩ input resistor. (a) What is the rms noise voltage (µV) at the input to this amplifier if the ambient temperature is 17°C? Also, (b) calculate the noise power in a W. (Use 2 decimal places for the final answer)

(a) The rms noise voltage (µV) at the input to this amplifier is equal to 4.0693 µV.

(a) The noise power is equal to 4.13 x 10-7 Watts.

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