Current Electricity#!#Current Density#!#Drift Velocity

Current And Current Density|Drift Velocity

Current & current density |Drift Velocity|Resistance, Resistivity and conductivity |Previous year questions |OHM's Law and its different forms |All about battery |All about power|Questions |Kirchhoff's Law|Questions |Electrical Instruments |Questions

Current & current density |Drift Velocity|Resistance, Resistivity and conductivity |Previous year questions |OHM's Law and its different forms |All about battery |All about power|Questions |Kirchhoff's Law|Questions |Electrical Instruments |Questions

Revision |Relation Between Electric Current And Drift Velocity |Ohm's Law|Mobility |Battery

Introduction||Current Density||Drift Speed

Electric Current|Current Density|Drift Speed|Relation Between Current & Drift Velocity|Drift Speed

If A is the area of cross section of conductor, e be the charge on the electrons, n be the number of electrons per unit volume and J be the current density then drift velocity of electrons is

Current||current density||drift speed

A : When a steady current flows through a conductor of non - uniform cross-section , the current density , electric field and drift velcoity do not remain constant. R : For a constant current the current density electric field and drift velocity are inversely proportional to cross - sectional area.