Q. An amplifier without feedback has a voltage gain of 50, input resistance is 1 KΩ & Output resistance of 2.5KΩ.The input resistance of the current-shunt negative feedback amplifier using the above amplifier with a feedback factor of 0.2 is

(A) 1/11kΩ
(B) 1/5kΩ
(C) 5kΩ
(D) 11kΩ

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✅ Correct Answer: (B) 1/5kΩ

Published by Mr. Dubey ⭐ 111.42K Points at 13-Sep-2023 11:42 am in Electronic Devices and Circuits

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