Question

a wire of 1 m length and radius 0.02 cm has a resistance of 5.0 ohm. Calculate the resistivity of the material of the wire.

ans-6.25*10 to the power -5 ohm meter
please give appropriate sol​

Answer 1

Length of wire, L = 1 m

Radius of wire, r = 0.02 cm = 2 * 10⁻² cm = 2 * 10⁻⁴ m

Resistance of wire, R = 5 Ω

For solution, refer to the attachment.