An amplifier operating over a frequency range of 18 to 20 MHz has 10 k – InterviewSolution

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1.	An amplifier operating over a frequency range of 18 to 20 MHz has 10 k&ohm; input resistance. At a temperature of 27° C, the noise voltage at input of amplifier is (Boltzman constant = 1.38 x 10 J/K)
Answer» Using Equation Va = (4 x 1.38 x 10-23 x 300 x 2 x 106 x 104)0.5 = 18.2 x 10-6 V.

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