Question

In a transistor, a change of 8.0 mA in the emitter current produces a change of 7.8 mA in the collector current. Then change in the base current is ____________.

Options

• 50 µA

• 100 µA

• 150 µA

• 200 µA

Answer 1

In a transistor, a change of 8.0 mA in the emitter current produces a change of 7.8 mA in the collector current. Then change in the base current is 200 µA.

Explanation:

`Delta "I"_"E" = Delta "I"_"C" + Delta "I"_"B"`

`therefore 8 = 7.8 + Delta "I"_"B"`

`therefore Delta "I"_"B" = 0.2  "mA"`

` = 200  mu "A"`