A transistor connected in common –emitter mode configuration is used as an amplifier. If RL=5K Ω and input Ri=2K Ω and current gain is 50 .Its Power gain is
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a
1250
b
12500
c
6250
d
12,500
answer is C.
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Detailed Solution
Pgain=Vgain×current gain =igain2RLRi =(50)2(52) =2500×2.5 =6250