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If a pentavalent element is doped in an ...

If a pentavalent element is doped in an intrinsic semiconductor then

A

a p-type semiconductor is formed

B

effective energy gap of the forbidden zone decreases

C

the energy states of free electrons in the pentavalent element come nearer to the conduction band

D

the energy states of free in the pentavalent element come down near the valence band

Text Solution

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The correct Answer is:
B, C
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