A uniform wire of length `1` and radius `r` has resistance `100 Omega`. it is recast into a thin wire of (i) length `2l` (ii) radius `r//2`. Calculate the resistance of new wire in each case.

A uniform wire of length l and radius r has a resistance of 100 Omega . It is recast into wire of radius (R )/(2)

A uniform wire of length / and radius r has a resistance of 25 Omega . It is melted and drawn into a thin wire of (a) length 2l, (b) radius ("r")/(2) . Calculate the new resistance in each case,

A uniform wire of length / and radius r has a resistance of 100 Omega . It is recast into a wire of radius (r )/(2) . The resistance of new wire will be:

A wire of length 1 m and radius 0.1 mn has a resistance of 100Omega . Find the resistivity of the material.

A wire of length 1 m and radius 0.1mm has a resistance of 100(Omega) .Find the resistivity of the material .

A wire of length 1 m and radius 0.1mm has a resistance of 100(Omega) .Find the resistivity of the material .

A wire of length 1 m and radius 0.1mm gas a resistance of 100(Omega) .Find the resistivity of the material .

A wire has a resistance of 16 Omega . It is melted and drawn into a wire of half its length. Calculate the resistance of new wire. What is the percentage change in its resistance?

A wire has a resistance of 16 Omega . It is melted and drawn into a wire of half its length. Calculate the resistance of the new wire. What is the percentage change in its resistance ?