A common emitter amplifier circuit, built using an npn transistor, is shown in the figure. Its dc current gain is ![]() ![]() |
What is the minimum base current for ![]() |
![]() |
A)
B)
C)
D)
Correct Answer: A
Solution :
[c] ![]() |
At saturation state, ![]() |
![]() ![]() |
now current gain factor ![]() |
![]() ![]() |
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