Gauss’s Law for magnetism

 

1) Gauss’s Law for magnetism states that the magnetic flux through any closed surface is zero.



2) Consider a closed surface S is placed in an uniform magnetic field of strength B.

 



 

3) A small area element 

 from the surface is taken.

 


 4) then magnetic flux through the surface 

  is




5) Now Gauss’s Law for magnetism states that the sum of all area element of the surface gives the net magnetic flux and amount of net magnetic flux is zero.

So,