Electronics and Communication Engineering - Exam Questions Papers - Discussion
Discussion Forum : Exam Questions Papers - Exam Paper 9 (Q.No. 48)
48.
If each stage has a gain of 10 dB and noise figure of 10 dB, then the overall noise figure of a two stage cascade amplifier will be
Answer: Option
Explanation:
Overall noise figure F of the system is
F = F1 + 
F1 = F2 = 10 dB = 10 in absolute units
g = 10 dB = 10 in absolute units
∴ F = 10 + 
= 10.9 .
Discussion:
1 comments Page 1 of 1.
Amit kumar said:
7 years ago
Thanks for the solution.
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