electric current, current density and ohms law

Revision |Electric Current|Current Density|Ohm's Law

The electric intesity E, current density j and conductivity sigma are related as:

The electric field E, current density j and conductivity sigma of a conductor are related as

The expression for Ohm's law in terms of electric field E and current density J is:-

Introduction |Electric Current|Current Density|Questions

Introduction OF Electric Current || Current Density || Current in a Conductor

Electric current is passing through a solid conductor PQ from P to Q. The electric current densities at p and Q are in the ratio.