engineering recuitment BHEL Engineer Trainee Mock Test 2025 Communication Systems Pulse Modulation Pulse Code Modulation (PCM) System
An amplifier having output SNR of 16 dB and input SNR of 21.4 dB. Its noise figure is ______.
1
5.4 dB
2
37.4 dB
3
+37.4 dB
4
-5.4 dB