3
Question
When added an impurity into the silicon which one of the following produces n-type of semi-conductors:
When added an impurity into the silicon which one of the following produces n-type of semi-conductors:
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Solution
The correct option is D phosphorous
Phosphorous which is pentavalent produces n-type semiconductor. Here only four electrons of phosphorous are used in making bonds with silicon crystal. The fifth electron remains free
Phosphorous which is pentavalent produces n-type semiconductor. Here only four electrons of phosphorous are used in making bonds with silicon crystal. The fifth electron remains free
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