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Questions  

In p-type semiconductor, conduction is due to 

a
greater number of holes and less number of electrons
b
only holes
c
only electrons
d
greater number of electrons and less number of holes

detailed solution

Correct option is A

In p-type semiconductors trivalent impurity is used, as a result number of holes is more than number of holes. Holes behave as positive charge carriers and electrons are negative charge carriers.

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