Drift velocity `v_(d)` varies with the intensity of electric field as per the relation

Drift velocity v_(d) varies with the intensity of electric field as per their relation

Suppose the drift velocity v_(d) in a material varied with the applied electric field E as v_(d) prop sqrt(E) . Then V – I graph for a wire made of such a material is best given by :

Suppose the drift velocity v_(d) in a material varied with the applied electric field E as v_(d) prop sqrt(E) . Then V – I graph for a wire made of such a material is best given by :

The figure shows some of the electric field lines corresponding to an electric field. If E is the intensity of electric field and V is the potential

For ohmic conductor, the drift velocity v_(d) and the electric field applied across it are related as