Q.

Calculate the current amplification factor β when change in collector current is 1mA and change in base current is 20μA.

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a

50

b

25

c

75

d

100

answer is A.

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Detailed Solution

Ic=1 mA=1×10−3 A Ib=20 μA=20×10−6 A β=IcIb    =1×10−320×10−6     =1002 ∴β=50
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Calculate the current amplification factor β when change in collector current is 1mA and change in base current is 20μA.