An amplifier without feedback has a voltage gain of 50, i...
An amplifier without feedback has a voltage gain of 50, input resistance of 1 kΩ and output resistance of 2.5 kΩ. The input resistance of the current shunt -ve feedback amplifier using the above amplifier with a feedback factor of 0.2 is
1/11 kΩ
1/5 kΩ
5 kW
11 kW
Correct answer is A
No explanation has been provided for this answer.
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