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Analog Electronics

Q1:

In a CE amplifier the input impedance is equal to the ratio of

A ac base voltage to ac base current

B ac base voltage to ac emitter current

C ac emitter voltage to ac collector current

D ac collector voltage to ac collector current

ANS:A - ac base voltage to ac base current

Input is applied to base with emitter grounded. The input impedance is the ratio of ac base voltage to ac base current.



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