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The current gain of a transistor is defi...

The current gain of a transistor is defined as

A

the ratio of change in collector current to the change in emitter current for a constant value of collector voltagein a common base arrangement

B

the ratio of change in collector current to the change in base current for a constant value of collector voltagein a common base arrangement

C

the ratio of change in collector current to the change in base current for a constant value of collector voltagein a common emitter arrangement

D

the ratio of change in emitter current to the change in collector current for a constant emitter voltage in a common emitter arrangement

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