If an iron wire is drawn to decrease its radius by0.5% .Then percentage of increase in its resistance will be

When a wire drawn until its radius decreases by 3% then percentage of increase in resistance is-

If a copper wire is stretched to make its radius decrease by 0.1% , then the percentage increase in resistance is approximately -

A cylindrical wire is stretched to increase its length by 10%. The percentage increase in the resistance of the wire will be–

A wire stretched to increase its length by 5% . Calculate percentage charge in its resistance.

A wire of resistance 1 Omega is stretched so as to change its diameter by 0.25 %. The percentage change in its resistance is

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.