A Steady Current Flows in a Metallic Conductor of Non-uniform Cross- Section. Which of These Quantities is Constant Along the Conductor: Current, Current Density, Electric Field, Drift Speed? - Physics
A steady current flows in a metallic conductor of non-uniform cross-section. Which of these quantities is constant along the conductor: current, current density, electric field, drift speed?
When a steady current flows in a metallic conductor of non-uniform cross-section, the current flowing through the conductor is constant. Current density, electric field, and drift speed are inversely proportional to the area of cross-section. Therefore, they are not constant.