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 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 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 given piece of wire of length l and radius r and resistance R is stretched uniformly to wire of radius (r)/(2) .Its new resistance is:

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 32Omega . It is melted and drawn into a wire of half of its original length. What is the resistance of the new wire?

If a wire of resistance R is melted and recasted in to half of its length, then the new resistance of the wire will be

A wire of radius r has resistance R. If it is stretched to a radius of (3r)/(4) , its resistance becomes

If a wire of resistance R is melted and recasted to half of its length, then the new resistance of the wire will be

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 ?