Analog Electronics
Three identical amplifiers with each one having a voltage gain of 50,input resistance of 1KΩ & output resistance of 250, are cascaded. The open circuit voltage gain of combined amplifier is

98dB
49dB
102dB
51dB

ANSWER DOWNLOAD EXAMIANS APP

Analog Electronics
Voltage Series (feedback also called series-shunt feedback) results in

Decreases in both input & output impedances
Decrease in input impedance & increase in output impedance
Increase in input impedance & decreases in output impedance
Increase in both input & output impedances

ANSWER DOWNLOAD EXAMIANS APP