Question:
The first stage of a two-stage amplifier has a voltage gain of 10, input resistance 600 Ω, equivalent noise resistance 1600 Ω and output resistance 27 KΩ. For a second stage, these values are 25, 81 kΩ and 1 MΩ, respectively. If it is driven by the generator with output impedance 50 Ω, find the noise figure of the amplifier.
The first stage of a two-stage amplifier has a voltage gain of 10, input resistance 600 Ω, equivalent noise resistance 1600 Ω and output resistance 27 KΩ. For a second stage, these values are 25, 81 kΩ and 1 MΩ, respectively. If it is driven by the generator with output impedance 50 Ω, find the noise figure of the amplifier.
Updated On: Mar 21, 2024
- 38.4
- 39.4
- 1.002
- 2.04
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The Correct Option is B
Solution and Explanation
The Correct answer is option (B) : 39.4
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