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An amplifier without feedback has a voltage gain of 50 input...

This question belongs to Electronics And Communications Engineering Analog Electronics
Analog Electronics
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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 negative feedback amplifier using the above amplifier with a feedback factor of 0.2 is

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Correct Answer: Option A
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