Question

3. If the length of copper wire is doubled keeping same area of cross
section, its resistivity will:
(a) Doubled
(b) Halved
(c) Remains same
(d) None of these
fDini​

Answer 1

Answer:

halved

Explanation:

R=pL/a

where..

p= resistivity

L = length of wire

a= area of cross section