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Question
In a common-base circuit calculate the change in the base current if that in the emitter current is αmA and a = 0.98
Options
0.04 mA
1.96 mA
2 mA
98 mA
MCQ
Solution
0.04 mA
Explanation:
`alpha = I_c/I_e = (I_e - I_b)/I_e`
`I_b = I_e - alphaI_e = 2 - 0.90 xx 2` = 0.04 mA.
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