A transistor is used in common-emitter m...

A transistor is used in common-emitter mode in an amplifier circuit. When a signal 20mV is added to the base-emmiter voltage,the base current changes by `20(mu)A `and the collector current changes by 2mA.The load resistance is `5k(Omega)`.Calculate (a)the factor`(beta)`(b)the input resistance `R_(BE),`(c) the transconductance and (d) the voltage gain .

`1 k Omega`

`2 k Omega`

`3 k Omega`

`4 k Omega`

Text Solution

Verified by Experts

The correct Answer is:

Resistance gain `=(Vol tag e gai n)/(Current gai n)`
`=(5 k Omega)/(25) =1k Omega`

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