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N-Type Semiconductor

To obtain n-t...

Question

To obtain n-type extrinsic semiconductor, the impurity element to be added to germanium should be of valency

A

2

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B

5

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C

4

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D

3

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Solution

The correct option is B $5$
Adding a pentavalent impurity will lead to greater no. of free electrons than no. of holes and will result in n-type semiconductor.

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