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A receiver is operated at a temperature of 300 K. The transistor used in the receiver have an average output resistance of 1 k. The Johnson noise voltage for a receiver with a bandwidth of 200 kHz is(a) 1.8 µV(b) 8.4 µV(c) 4.3 µV(d) 12.6 µVI have been asked this question in an online quiz.The origin of the question is Noise in chapter EDC Overview of Electronic Devices & Circuits

Answer» CORRECT CHOICE is (a) 1.8 µV

To explain: v^2 = 4kBTR where SYMBOLS have their USUAL MEANINGS, hence v = 1.8 µV.


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