1. Explain resistivity and mention factors affecting value of resistivity
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Explanation:
The resistivity of a material depends on its nature and the temperature of the conductor, but not on its shape and size. A good conductor has less resistivity, whereas a bad conductor or insulator has high resistivity. The resistivity of semi-conductors lies between that of conductors and insulators.
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Resistivity means a measure of the resisting power of a specified material to the flow of an electric current.
factors affecting value of resistivity are
Temperature.
Alloying.
Mechanical stressing.
Age Hardening.
Cold Working.
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