Resistivity of pure metal is:

less than alloys

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more than alloys

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equal to alloys

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unpredictable

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Solution

The correct option is A less than alloys
The resistivity of a material increases as a result of imperfections, such as defects, impurities, grain boundaries, and dislocations. Another approach to reducing resistivity involves the simultaneous application of heat and pressure after crystal growth, which can enhance the crystallinity of the metal and thereby significantly reduce resistivity.
The resistivity of alloys is generally higher than that of pure metals, and increases with impurity contamination.

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