Question

HYSICS
What is the resistivity of a wire that has
resistance of sohm, length as
am and
radius of wire is 7mm.
R=52
L = 2m
A = 7 mm​

Answer 1

Answer:

Given : R = 2Ω l = 1 m d = 0.4 mm = 0.0004 mCross section area of wire A = πd24 = π × (0.0004)24 = 1.256 × 10-7 m2 Resistivity of the material .