JEE Main202312 Apr 2023Morning ShiftPhysicsSemiconductorsActual
In an n-p-n common emitter (CE) transistor the collector current changes from 5 mA to 16 mA for the change in base current from 100 μ A and 200 μ A , respectively. The current gain of transistor is _____.
Options
- A110
- B210
- C0 . 9
- D9
Correct answer
A. 110
Step-by-step solution
The change in collector current for the given transistor can be written as ∆ I c = 16   mA - 5   mA = 11   mA The change in base current for the given transistor can be written as ∆ I b = 200   μ A - 100   μ A =   100   μ A The formula to calculate the current gain in CE configuration is given by β = ∆ I c ∆ I b       . . . 1 Substitute the values of the known parameters into equation (1) to calculate the required quantity