A transistor is operated in common emitter configuration at constant collector voltage `V_(c)=1.5 V` such that a change in the base current from `100 muA` to `150 muA` produces a change in the collector current from `5 mA` to `10 mA`. The current gain `(beta)` is

Options

A. 67
B. 75
C. 100
D. 50

Answer

C

Explanation

`beta=(DeltaI_(c))/(DeltaI_(b))=((10-5)xx10^(-3))/((150-100)xx10^(-6))=100`