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Give some properties of a semiconductor....

Give some properties of a semiconductor.

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i. It has covalent bonding
ii. It is crystalline in nature .
iii. It has a negative temperature coefficient of resistance .
iv. Its conductivity increases with addition of impurities.
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NEW JOYTHI PUBLICATION-SEMICONDUCTOR ELECTRONICS : MATERIALS , DEVICES AND SIMPLE CIRCUITS -EVALUATION QUESTIONS AND ANSWER
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