A conductor wire having `10^29` free electrons `/ m^3` carries a current of 20A. If the cross-section of the wire is `1mm^2`, then the drift velocity of electrons will be :

A conductor wire having 10^(29) free electrons/ m^(3) carries a current of 20 A.If the cross-section of the wire is 1 mm^(2) ,then the drift velocity of electrons will be (e= 1.6xx10^(-19)C )

Aconductor wire having 10^29 free el ectrons//m a current of 20A. If the cross-section of the 1 mm^2 , then the drift velocity of electrons will be

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

A current of "1.6A" is flowing through "h" wire having cross- sectional area 1mm^(2) .If density of free electrons in the material of the wire is 10^(29) per m^(3) ,the drift velocity of electrons will be:-

A copper wire of cross-sectional area 0.5 m m^(2) carries a current of 0.2A. If the free electron density of copper is 8.4xx10^(28)m^(-3) then compute the drift velocity of free electrons.

There are 8.4xx10^(22) free electrons per cm^(3) in copper. The current in the wire is 0.21A (e= 1.6xx10^(-19)C ). Then the drifts velocity of electrns in a copper wire of 1mm^(2) cross section, will be:-