Question

When length of a wire is increased, its resistivity:
a) Increases
b) Decreases
c) Remains same
d) None of the above

Answer 1

Answer:

• c) Remains same

Explanation:

As we know that resistivity is the ability of a conductor to oppose the flow of current and it depends only on nature and temperature of conductor. It doesn't depends on length of conductor.

Therefore increasing in Length of wire doesn't affect its resistivity.