AP EAMCET202421 May 2024Evening ShiftPhysicsSemiconductorsActual
In n-p-n transistor circuit, the collector current is 10 mA . If 95 % of the electrons emitted reach the collector, then the base current is nearly
Options
- A5.3 mA
- B53 mA
- C35 mA
- D0.53 mA
Correct answer
D. 0.53 mA
Step-by-step solution
In n-p-n transistor, aligned & I _ C =10 ~mA , I _ C =95 % of I _ E = 95 100 I _ E & I _ E = 100 I _ C 95 = 100 10 95 =10.53 ~mA aligned Now, I _ E ^ = I _ B + I _ C I _ B = I _ E - I _ C =10.53-10=0.53 ~mA