Choose the correct option:
Electrical conductivity of a semi conductor-

decreases with rise in its temperature.

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increases with rise in its temperature.

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does not changes with temperature.

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first decreases and then increases with rise in temperature.

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Solution

The correct option is D increases with rise in its temperature.
Electrical conductivity of semi-conductor increases with increase in temperature whereas electrical conductivity of conductor decreases with increase in temperature.

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Similar questions

Why does the electrical conductivity of semiconductors increase with rise in temperature ?

E_{G}

Normally, solubility of a crystalline solid increase with temperature. Does it increase uniformly in all cases ? Name a substance whose solubility :

(a) increase rapidly withe temperature.

(b) increase gradually with temperature.

(d) initially increases then decreases with rise in temperature.

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