CUET-PG SERIES Communication-systems
Noise Temperature And Noise Figure
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2023 Chapter Questions 1 MCQs
01
PYQ 2023
medium
communication-systems ID: cuet-pg-
The first stage of a two-stage amplifier has a voltage gain of 10, input resistance 600 Ī©, equivalent noise resistance 1600 Ī© and output resistance 27 KĪ©. For a second stage, these values are 25, 81 kĪ© and 1 MĪ©, respectively. If it is driven by the generator with output impedance 50 Ī©, find the noise figure of the amplifier.
1
38.4
2
39.4
3
1.002
4
2.04