# Gauss' Law for Magnetism

Written by Jerry Ratzlaff on . Posted in Electromagnetism

Gauss' Law for Magnetism (Maxwell's second equation) says that the divergence of the magnetic flux density "B" is zero.

## formula

$$\bigtriangledown \cdot B = 0$$

Where:

$$\bigtriangledown \cdot$$ = divergence operator

$$\rho$$ = electric charge density

$$B$$ = magnetic flux density