(a) A multistage amplifier employs five stages each of which has a power gain of 30. What is the total gain of the amplifier in dB? (b) If a negative feedback of 20 dB is employed, find the resultant gain.
(a) A multistage amplifier employs five stages each of which has a power gain of 30. What is the total gain of the amplifier in dB? (b) If a negative feedback of 20 dB is employed, find the resultant gain.