Q.

Which of the following acts as a buffer?

A. cc amplifier
B. ce amplifier
C. cb amplifier
D. cascaded amplifier
Answer» A. cc amplifier
Explanation: the voltage gain of a common collector amplifier is unity. it is then used as a buffer. the cc amplifier is also called as an emitter follower. though there is no amplification done, the output will be stabilised.
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