Electronics and Communication Engineering - Analog Electronics - Discussion
Discussion Forum : Analog Electronics - Section 21 (Q.No. 11)
11.
The signal input to a given amplifier is made up of 100 mΩ signal power and 1 mΩ noise power. The amplifier contributes an additional 100 mΩ of noise and has a power gain of 20 dB. The input signal-to noise ratio is
Discussion:
2 comments Page 1 of 1.
Jeeva said:
8 years ago
What is the formula? Explain.
Irra said:
7 years ago
Power Gain = 10 log (S/N),
Where S/N is the signal to noise ratio,
20 = 10 log (S/N).
S/N = 100.
Where S/N is the signal to noise ratio,
20 = 10 log (S/N).
S/N = 100.
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