In a transistor if increase in emitter current is 4 mA and corresponding increase in collector current is 3.5 mA. Find β
a] .875
b] .5
c] 7
d]1
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△IE=4
△Ic=3.5
α=△Ic△IE=3.54=78
β=α1−α=781−78=7
Hence , option {C} is correct
7
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