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In the cuircuit shown here the transisto...

In the cuircuit shown here the transistor used has a current gain `beta=100`. What should be the bias resistor `R_(BE)` so that `V_(CE)=5V("neglect "V_(BE))`

A

`200 kOmega`

B

`1 kOmega`

C

`500 kOmega`

D

`2 kOmega`

Text Solution

Verified by Experts

The correct Answer is:
A
Applying KVL to QCETSRQ, we get `V_(C C)=I_(C)R_(C)+V_(CE)` and calculate `I_(C)`

`beta=(I_(c))/(I_(B))impliesI_(B)=(I_(C))/(beta)`
Applying KVL to PUTSRQP, we get
`V_(C C)=I_(B)R_(B)+V_(BE)` here `V_(BE)` is negligible
`:.V_(C C)=I_(B)R_(B)impliesI_(B)=(V_(C C))/(R_(B))`
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