Download Aptitude Crack
img not found img not found

Analog Electronics

Q1: 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

A 2

B 10

C 20

D 100

ANS:D - 100

Power Gain = 10 log (S/N),
Where S/N is the signal to noise ratio,
20 = 10 log (S/N).
S/N = 100.



img not found
img

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.