Question

A wire of length I,made of material resistivity p is cut into equal parts. The resistivity of the two parts are equal to,

Answer 1

Answer:

As we know that resistivity of a wire depends on length,area of cross section and resistance of a wire.

as, R = (p×l)/A

where notations have its usual meaning.

In the above question,

Area of cross section and resistance of a wire is constant.

therefore, Resistivity is inversely proportional to length of the wire.

Resistivity of the wire is p

when the wire is cut into two equal parts

Then, Resistivity of the wire cut = 2 × p

i.e, Resistivity becomes double of the original resistivity of a wire.

Answer 2

Answer:

the answer is p

Explanation:

a wire of the length is cut into two the p should be the answer