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A common emitter amplifier has a voltage...

A common emitter amplifier has a voltage gain of `50`, an input impedence of `100 Omega` and an output impedence of `200 Omega`. The power gain of the of the amplifier is

A

500

B

1000

C

1250

D

50

Text Solution

Verified by Experts

The correct Answer is:
C
Voltage gain `=beta((R_(out))/(R_("in"))`
`implies beta=(50xx100)/(200)=25`
power gain `=beta("Voltage gain ")`
`=(25(50)=1250`
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