The collector supply voltage is 6 V and the voltage drop across a resistor of 600 `Omega` in the collector circuit is 0.6 V, in a circuit of a transistor connected in common emitter mode. What is the base current if the current gain is 20?

Options

A. `0.25` mA
B. `0.05` mA
C. `0.12` mA
D. `0.02` mA

Answer

B

Explanation

`I_(C)=(V_(C))/(R_(C))=(0.6)/(600)=1mA`
`beta=(I_(C))/(I_(B))impliesI_(B)=(I_(C))/(beta)=(1xx10^(-3))/(20)=0.05 mA`