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The PNP transistor when used for switching the power, then it is called_________

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The PNP transistor when used for switching the power, then it is called_________

(a) sourcing current

(b) sinking current

(c) forward sourcing

(d) reverse sinking

The question was posed to me in exam.

Query is from Problems on AC and DC Analysis topic in portion Small-Signal Low-Frequency AC models of Transistors of Electronic Devices & Circuits

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Correct choice is (a) sourcing current

Explanation: Sometimes DC current gain of a bipolar transistor is too low to directly switch the load current or voltage, so multiple switching transistors is used. The load is connected to ground and the transistor switches the power to it.

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