mvenkat3272
Newbie level 5
we all know current is the rate of flow of charges.In the maxwell's equations in electromagnetics why do we need current density and why not we use charges instead of currents
There are currents which are not due to charges too which gets accomodated in Maxwell's equation! For instance,when we add J in maxwell equation,it includes all currents such as Source current,drift current,diffusion current,convection current etc..mvenkat3272 said:we all know current is the rate of flow of charges.In the maxwell's equations in electromagnetics why do we need current density and why not we use charges instead of currents
Mr.Coolsee example 2.1 on page 40 of this excellent FREE online book on subject of electromagnetic fields.
we all know current is the rate of flow of charges.In the maxwell's equations in electromagnetics why do we need current density and why not we use charges instead of currents