Two metallic wires A and B of same material are connected in parallel. Wire A has length l and radius r and wire B has length 2l. Calculate the ratio of the total resistance of parallel combination and the resistance of wire A?

Ten identical wires each having a resistance of 1Omega are connected in parallel. The combination will have a resistance of

An electric current is passed through a circuit containing two wires of the same material, connected in parallel. If the lengths and radii are in the ratio of 4/3 and 2/3, then the ratio of the current passing through the wires will be

Calculate the resistivity of the material of a wire 2 m long. 0.4 mm in diameter and having a resistance of 4Omega .

A 8 ohm resistance wire is stretched to double its length. Calculate the new resistance of the wire.

A wire of uniform cross section has a resistance of 9 Omega. It is cut into three equal pieces. Each piece is stretched uniformly to three times its length and all the three stretched pieces are connected in parallel.Assuming that stretching of wire does not cause any change in density of their material ,calculate the total resistance of the combination described.

A wire of length L is drawn to a length 2L, then its resistance will.

A wire has a resistance of 16 ohm 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