Electronic Devices Question 12

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. What change in the base current is necessary to produce the same change in the collector current

Options:

A) 50 mA

B) 100 mA

C) 150 mA

D) 200 mA

Show Answer

Answer:

Correct Answer: D

Solution:

$ \Delta i _{e}=\Delta i _{c}+\Delta i _{b} $

Therefore 8 = 7.8 + $ \Delta i _{b} $

$ \Rightarrow \Delta i _{b} $ =0.2mA = 200 mA.



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