[Solved] Which parasitic capacitors don’t affect the frequency response of the C.C. stage of the B.J.T.?

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Q.	Which parasitic capacitors don’t affect the frequency response of the C.C. stage of the B.J.T.?
A.	ccs
B.	ccs and cb
C.	cb
D.	ccs and cµ
Answer» A. ccs
Explanation: in the follower stage, the load is present at the emitter. the parasitic capacitors present between the collector and the substrate i.e. cµ gets deactivated. this is observed from the small signal analysis where both the terminals of this capacitor get shorted to a.c. ground.

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