Question

The current gain of a common emitter transistor is 50. the change in emitter current for a corresponding change of 5 ma in base current will be

Answer 1

Answer:

255mA

Explanation:

Current gain, β=ΔIC /ΔIB,    where ΔIC is change in collector

current and ΔIB is change in base current.

∴ΔIC=βΔIB=50×5=250mA

Also, ΔIE=ΔIB+ΔIC

=(250+5)mA=255mA