p-n-p transistor biased the active region of operation.

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p-n-p transistor biased the active region of operation. The base current is due to—

1. Holes entering the base from the terminal for recombination
2. Holes injected in to the emitter from base
3. Only saturation current due to reverse bias of collector junction
4. Electrons recombining with a part of the holes diffusing in the base region

Correct Option: D

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