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Q.

The concentration of electrons in a semiconductor is 3×1013/cm3 and hole concentration is 5×1014/cm3 . The semiconductor is

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a

n-type

b

p-type

c

Intrinsic

d

Insulator

answer is B.

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Detailed Solution

ne=3×1013

nh=5×1014

ne<nh

So p-type

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