Question

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

Answer 1

SOLUTION:

The resistivity of the two parts are equal to "p"(rho)

EXPLANATION:

To find :

The resistivity of the two parts are equal

Given :

length of wire 'l'

Resistivity of wire "ρ"(rho)

Resistivity is a property of a material, so unless you

change material of wire, resistivity will remain same

"ρ"(rho).

The correct option is (a).

The project code is #SPJ2