Assertion (A) : n - p - n transistor is preferred than p - n - p transistor
Reason (R) : Majority charge carriers in NPN and PNP transistors are electrons and holes respectively and the mobility of electrons is greater than the mobility of holes

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A is true, but R is false

Both A and R are true, but R is not the correct explanation of A

Both A and R are false

Both A and R are true and R is correct explanation of A

answer is A.

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Detailed Solution

In NPN transistor, electrons are majority charge carriers which have more mobility than holes and hence NPN transistor preferred more over PNP transistor.

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