A wire of diameter 0.02 metre contains 1028 free electrons per cubic metre. For an electrical current of 100 A , the drift velocity of the free electrons in the wire is nearly

Define 'drift velocity' of free electrons .

A metallic wire of diameter 0.02m contains 1028 free electrons per cubic meter. Find the drift velocity for free electrons, having an electric current of 100 amperes flowing through the wire. (Given : charge on electron = 1.6 xx 10^-19 C)

An aluminium wire of diameter 0.24 cm is connected in series to a coper wire of diamater 0.16 cm. The wires carry n electric current of 10 A. Find drift velocity of electrons in the copper wire. Given that number of density of free electrons in copper = 8.4 xx 10^28m^-3 .

If the radius of a wire carrying current is doubled, the drift velocity of the electrons will be :

An aluminium wire of diameter 0.24 cm is connected in series to a coper wire of diamater 0.16 cm. The wires carry n electric current of 10 A. Find crrent density of free electrons in the aluminium wire.