Question

A wire of length /, made of material resistivity rho is cut into two equal parts. The resistivity of the two parts are equal to,
(a) rho
(b) rho/2
(c) 2rho rho
(d) 4 rho

Answer 1

Answer:

So, when you cut a wire into two exactly equal halves, the resistance will also be down to half. Resistivity, on the other hand, is a property of a material, so unless you change the material of the wire, resistivity will remain same. But resistivity depends on temperature.

Explanation:

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