Question

In a common -emitter transistor amplifier, an increase of `50muA` in the base current causes an increase of `1.0mA` in the collector current . Calculat gain `beta`. What will be the change in emitter current? Also calculate current gain `alpha`
A. 1050 mA
B. 1050 `mu`A
C. 5025 mA
D. 5025 `mu`A

Answer 1

Correct Answer - B
The change in emitter current is
`DeltaI_E=DeltaI_B+DeltaI_C=50xx10^(-6)+1xx10^(-3)`
`=1050xx10^(-6)A =1050 muA`