Home
Class 12
PHYSICS
A wire has a resistance R. Find new resi...

A wire has a resistance R. Find new resistance,
(i) if radius of cross-section of a cylindrical wire is doubled, then find ratio of initial to final resistance.
(ii) if length of wire is increased by `10%`, then find the percentage increase in its resistance.
(iii) if length of wire is increased by `20%`, then find the percentage increase in its resistance.

Promotional Banner

Similar Questions

Explore conceptually related problems

When length of wire is increased by 10% , then increase in resistance is

The wire is stretched to increase the length by 1%. Find the percentage change in the resistance.

The wire is stretched to increase the length by 1%. Find the percentage change in the resistance.

If an increase in length of copper wire is 0.5% due to stretching, the percentage increase in its resistance will be