Define specific resistance?

Draw a graph representing the change in specific resistance with temperature.

A metallic wire of specific resistance s is stretched in such a way that its length is doubles and area of cross section is halved Then the specific resistance of the wire will be

Write the dimension of specific resistance.

A conducting wire is stretched to make its length twice the former. If the volume and specific resistance of the wire remain, unchanged then what will be its new resistance?

A lump of copper of mass 10 g and of density 9g.cm^-3 is given, what should be the length and cross section of the wire made from it so that its resistance is 2 ohm. (Given ,specific resistance of copper 1.8 times 10^-6 Omega cm ).

IF a wire of length 1 m and diameter 1.5 mm, a potential difference of 5 mV is applied between its two ends and the current through it is 500 mA.Determine the specific resistance for the material of the wire.

Define specific conductance. Mention its Unit.