Physics, asked by ianpaul4714, 1 year ago

(a) Define resistivity of a wire and state its SI unit. (b) Calculate the resistivity of a 400cm long copper wire that has a cross-sectional area of 2cm2 and resistance is  2 .

Answers

Answered by Mmta1234

5

1. it is the property of resistance in unit area at constant temperature. its unit is ohm meter

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