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Q.

The base current of a transistor is 100 μA and the collector current is 2 mA. What is the current gain for the common base configuration?

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a

0.90

b

0.93

c

0.95

d

0.98

answer is C.

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Detailed Solution

IE=IC+IB=(0.002+0.0001) A⇒IE=0.0021 A∴α=IcIE=0.0020.0021=0.95
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