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Q.

The resistivity (ρ) of semiconductor varies with temperature.  Which of the following curve represents the correct behaviour

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a

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b

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c

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d

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answer is A.

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Detailed Solution

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Unlike metals, the resistivities of semiconductors decrease with increase in temperature. Increase in temperature results in a greater number of electron hole pair in semiconductors.

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The resistivity (ρ) of semiconductor varies with temperature.  Which of the following curve represents the correct behaviour