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15-03-2019
Physics

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name three substances whose resistance change very little with the rise in temperature

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15-03-2019

Metal alloys, for example, Ag-Cd that have very low temperature coefficient of resisitance.

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15-03-2019

Resistance of semi conductors such as germanium, selenium, silicon decreases with temperature because more covalent bonds in semiconductor get broken with rise of temperature providing more number of electrons and holes as current carriers

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