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In a common emitter amplifier, using out...

In a common emitter amplifier, using output reisistance of `5000` ohm and input resistance fo `2000`ohm, if the peak value of input signal voltage is `10 m V` and `beta=50`. The power gain is

A

`125xx50`

B

`125/90`

C

`1.25xx50`

D

`2.5xx10^(4)`

Text Solution

Verified by Experts

The correct Answer is:
A
Voltage gain `=(Output Vol tag e)/(Input vol tag e)=1.25/(10xx10^(-3))=125`
Power gain =voltage gainxcurrent gain
`125xx50`
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