A pnp transistor is used in common emitter mode in an amplifier circuit. When base current is charged by an amount ΔIB, the collector current changes by 4mA. If the current amplification factor is 60, then the value of ΔIB is:
A
240mA
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B
66.6μA
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C
60μA
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D
15μA
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Solution
The correct option is A66.6μA Current amplification factor is the change in collector current per unit change in base current.