Find the length of 13.2 kg of copper wire of diameter 4mm, when 1 cubic cm of copper weights 8.4 gm.

Calculate the resistance of 1 km long copper wire of radius 1 mm. (Resistivity of copper is 1.72 xx10^(-8) Omega m ).

Copper has one conduction electron per atom. Its density is 8.89 g//cm^3 and its atomic mass. 63.54 g//mol . If a copper wire of diameter 1.0 mm carries a current of 2.0 A , what is the drift speed of the electrons in the wire?

Find the weight of a lead pipe 3.5m long, if the external diameter of the pipe is 2.4cm and the thickness of the lead is 2mm and 1 cubic cm of lead weighs 11 gm.

Find the weight of a lead pipe 3.5m long, if the external diameter of the pipe is 2.4cm and the thickness of the lead is 2mm and 1 cubic cm of lead weighs 11 gm.

A copper wire, 3 mm in diameter, is wound about a cylinder whose length is 12 cm , and diameter 10 cm , so as to cover the curved surface of the cylinder. Find the length and mass of the wire, assuming the density of copper to be 8. 88 g p e r\ cm^3

Find the weight of a lead pipe 3.5m long, if the external diameter of the pipe is 2.4cm and the thickness of the lead is 2mm and 1 cubic cm of lead weighs 11gm.

When a weight of 5 kg is suspended from a copper wire of length 30 m and diameter 0.5 mm , the length of the wire increases by 2.4 cm . If the diameter is doubled, the extension produced is

A copper wire, 3 mm in diameter, is wound about a cylinder whose length is 12 cm, and diameter 10 cm, so as to cover the curved surface of the cylinder. Find the length and mass of the wire, assuming the density of copper to be 8. 88g"\ "p e r"\

A copper wire, 3 mm in diameter, is wound about a cylinder whose length is 12 cm, and diameter 10 cm, so as to cover the curved surface of the cylinder. Find the length and mass of the wire, assuming the density of copper to be 8. 88g"\ "p e r"\

An aluminium wire of diameter 0.24 cm is connected in series to a copper wire of diameter 0.16 cm. The wires carry an electric current of 10 ampere. Find (i) current-density in the aluminium wire (ii) drift velocity of electrons in the copper wire. Given : Number of electrons per cubic metre volume of copper =8.4xx10^(28) .