Question

A wire has resistivity ρ, its length is doubled and its area of cross section is halved. What will be the new
value of resistivity of the wire?

Answer 1

Answer:

hey

Explanation:

R = rho * length/A

rho = R*A/L

if L= 2L and A= A/2

then Rho = R * A/4L

Answer 2

Answer:

resistivity depends on temperature and material of resisitor so the resisitivity remain constant new is p only it is the correct answer please fol low me and Mark as brainliest....