Simple Maxwell Equation question

[ZedCar]

Homework Statement

In the Maxwell eqn

divD = ρ (sub f)

What does ρ sub f represent?

Homework Equations

The Attempt at a Solution

Does is represent volume density of charge?

 

[HallsofIvy]

No, B is the magnetic field flux so $\rho_f$ is the "volume density of magnetism". Since there are no "magnetic monopoles", that should always be 0.

 

[ZedCar]

Thanks very much HallsofIvy!

 

[ehild]

Homework Statement

In the Maxwell eqn

divD = ρ (sub f)

What does ρ sub f represent?

Does is represent volume density of charge?

D is the vector of electric displacement and its divergence is equal to the volume charge density. "f" can mean "free", the excess macroscopic charge density.
http://scienceworld.wolfram.com/physics/D.html

ehild

 

[ehild]

No, B is the magnetic field flux so $\rho_f$ is the "volume density of magnetism". Since there are no "magnetic monopoles", that should always be 0.

HallsofIvy, the question was "D" not "B".

ehild