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The collector supply voltage is 6 V and ...

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?

A

0.25 mA

B

0.05 mA

C

0.12 mA

D

0.02 mA

Text Solution

Verified by Experts

The correct Answer is:
B
The collector current is givne by
`I_(C)=(V_(C ))/(R_(C))=(0.6V)/(600Omega)=1xx10^(-3)A=1mA`
`beta=(I_(C))/(I_(B))rArr I_(B)=(I_(C))/(beta)=(1mA)/(20)=0.05mA`
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