Physics, asked by akshaya207, 10 months ago

a wire of length one metre and radius 0.02 CM has a resistance of 5 ohm calculate the resistivity of the material of the wire

Answers

Answered by awaisanwar492

2

Answer:

2.512x10-8 ohm-meter

Explanation:

L = 1 m, r = 2x10^-4 m², R = 5 ohm, р = ?

R =р L /A⇒ р = R (πr²)/R = 3.14x4x10-8/5= 2.512x10-8

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