[" The resistance of a wire is "10" ohm."],[" The resistance of a wire whose "],[" length is twice and the radius is half,"],[" if it is made of same material is "]

The resistance of a conducting wire is R. Resistance of wire of twice the Iength and twice the diameter is

The new resistance of wire of R Omega , whose radius is reduced half, is

The resistance of a wire of length 15.7 m and radius 0.5 mm is 10 Omega . Find the resistivity of the material of the wire.

The resistance of a wire of length 40 m and radius o.25 mm is 10 Omega . The conductivity of the material of the wire is

A wire of silver has a resistance of 1 ohm. Specific resistance of constantan is 30 times the specific resistance of silver. Find the resistance of a constantan wire whose length is one third length of the silver wire and radius half the radius of the silver wire.

The resistivity of iron is 1 xx 10^(-7) ohm -m. The resistance of a iron wire of paritcular length and thickness is 1 ohm. If the length and the diameter of wire both are doubled, then the resistivity in ohm-m will be

A resistance 10 Omega is stretched to twice its original length . The resistance of half of the stretched wire is

Calculate the the resistivity of the material of a wire whose resistance is 5Omega , length 1m and radius 0.6mm.