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For semiconductors, the resistivity is inversely proportional to the temperature for semiconducting materials.

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For semiconductors, the resistivity is inversely proportional to the temperature for semiconducting materials.

(a) True

(b) False

I have been asked this question by my college professor while I was bunking the class.

This is a very interesting question from Properties of Semiconductors topic in section Semiconductors of Engineering Physics II

1 Answer

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Correct choice is (a) True

The explanation: For semiconductors, the resistivity is inversely proportional to the temperature of the material, that is, it has a negative temperature coefficient. When the temperature of the semiconductor is increased, large numbers of charge carriers are produced due to the breaking of covalent bonds. These charge carriers move freely, hence conductivity increases and therefore the resistivity decreases.

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