Define the term resistivity and state its a unit draw a graph showing variation of resistivity with change in temperature for a typical semiconductor.
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resistivity is equal to length of the conductor by area of cross section × resistance it's unit is ohm meters
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Explanation:
resistivity is just the resistance of a cube of volume 1m^3. it's SI unit is ohm metre.the graph is upward curve with some intercept or we can say starting above from origin
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