The current of transistor in common emitter mode is 49. The change in collector current and emitter current corresponding to the change in the base current by `5.0 muA`m will be :-

Options

A. `245mu A, 250mu A`
B. `240mu A, 235mu A`
C. `260mu A, 255mu A`
D. None of these

Answer

A

Explanation

Current gain, `beta=(DeltaI_(C))/(DeltaI_(B))`, where `DeltaI_(C )` is change in collector current and `DeltaI_(B)` is change in base current.
`rArr DeltaI_(C)=betaDeltaI_(B)=49xx5=245 muA`
Also, `DeltaI_(E)=DeltaI_(B)+DeltaI_(C)`
`=(245+5)muA=250muA`