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What is the output resistance of CC transistor?

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What is the output resistance of CC transistor?

(a) 25 Ω

(b) 50 Ω

(c) 100 Ω

(d) 150 Ω

I have been asked this question in an internship interview.

My enquiry is from The Common Collector Configuration topic in section Transistor Characteristics of Electronic Devices & Circuits

1 Answer

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The correct choice is (a) 25 Ω

Explanation: The CC transistor has a very low value of output resistance of 25 Ω. 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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