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Q.

In a common-emitter configuration transistor amplifier, the load resistance of the output circuit is 1000times the resistance of the input circuit. If α=0.98 then the voltage gain is

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a

49

b

490

c

4900

d

49000

answer is D.

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Detailed Solution

A=β×RLRi =(α1−α)×RLRi =49×1000=49000

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