Answer: The overall voltage gain = 60dB
Step-by-step explanation:
Voltage gain in decibel can be expressed using the equation,
Av in dB = 20 log ( Vout / Vin)
Given that each stage of a three stage RC coupled amplifier has a voltage gain of 10.
First stage : 20log 10 = 20
Second stage = 20
Likewise the third = 20
The overall voltage gain = 60 dB
