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The CC configuration has an input resistance_________

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The CC configuration has an input resistance_________

(a) 500kΩ

(b) 750kΩ

(c) 600kΩ

(d) 400kΩ

I got this question in an internship interview.

I would like to ask this question from The Common Collector Configuration topic in section Transistor Characteristics of Electronic Devices & Circuits

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The correct answer is (b) 750kΩ

For explanation: It has a high input resistance and very low output resistance so the voltage gain is always less one. It is used for driving a low impedance load from a high impedance source.

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