Question

22. An amplifier without feedback has a voltage gain of 50, input resistance of 1 ko and output resistance of 2.5 ko.
The input resistance of the current shunt -ve feedback amplifier using the above amplifier with a feedback factor of 0.2 is
A. 1/11 k/ohm
B. 1/5 k/ohm
C.5 KW
D. 11 kW​

Answer 1

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