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The given transistor operates is saturat...

The given transistor operates is saturation region then what should the be value of `V_(B B)`
`(R_("out")=200Omega,R_("in")=100KOmega,V_(C C)=3"volt",V_(BE)=0.7"volt",V_(CE)=0,beta=200)`

A

a. 4.1 volt

B

b. 7.5 volt

C

c. 8.2 volt

D

d. 6.8 volt

Text Solution

Verified by Experts

The correct Answer is:
C
`V_(CE)=V_(C C)-I_(C)R_(O)implies0=3-I_(C)xx200`
`I_(C)=(3)/(200)=15mA`
`beta=200=(I_(C))/(I_(B))impliesI_(B)=(I_(C))/(beta)=(15mA)/(200)=75muA`
`V_(BE)=V_(B B)-I_(B)R_("in")`
`V_(B B)=0.7+75xx10^(-6)xx100xx10^(3)`
`=0.7+7.5=8.2`volt
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