Question

In a common-base circuit calculate the change in the base current if that in the emitter current is αmA and a = 0.98

पर्याय

• 0.04 mA

• 1.96 mA

• 2 mA

• 98 mA

Answer 1

0.04 mA

Explanation:

`alpha = I_c/I_e = (I_e - I_b)/I_e`

`I_b = I_e - alphaI_e = 2 - 0.90 xx 2` = 0.04 mA.