In the circuit shown here, the transistor used has a current gain `beta` = 100. What should be the base resistor `R_B` so that `V_(CE) =5 V` (neglect `V_(BE)`)?

Options

A. `1 xx 10^(3) Omega`
B. 500
C. `200 xx 10^(3) Omega`
D. `2 xx 10^(3) Omega`

Answer

C

Explanation

`I_(C)=(V_(C C)-V_(CE))/(R_(C))=(10-5)/(1kOmega)=5mA`
`rArrV_(C C)=I_(B)R_(B)=(I_(C))/(beta)R_(B)`
`rArrR_(B)=(beta.V_(C C))/(I_(C))=(100xx10)/(5mA)=200 kOmega`