Question
Question: In a transistor, a change of 8.0 mA in the emitter current produces a change of 7.8 mA in the collec...
In a transistor, a change of 8.0 mA in the emitter current produces a change of 7.8 mA in the collector current. What change in the base current is necessary to produce the same change in the collector current.
A
50 μA
B
100 μA
C
150 μA
D
200 μA
Answer
200 μA
Explanation
Solution
Δie=Δic+Δib
⇒ 8 = 7.8 +Δib⇒Δib=0.2mA = 200 μA.