A common emitter circuit is used as an amplifier, its current gain is 50. if input resistance is `1kOmega` and input voltage is 5 volt then output current will be

Options

A. 250 mA
B. 30 mA
C. 50 mA
D. 100 mA

Answer

A

Explanation

`I_(B)=V/R=5/10^(3)=5xx10^(-3)`
`beta=I_(C)/I_(B)=50=("output current")/("input current")`
`50=I_(C)/(5xx10^(-3))`
`I_(C)=25mA`