MAHE Manipal B.Sc Nursing 2025
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6 Questions around this concept.
Gauss law for magnetic field is given by
Magnetic flux (f)-
It is defined as the magnetic lines of force passing normally through a surface called magnetic flux.
As we learn in electrostatic, the Gauss law for a closed surface states that :
But Gauss's Law of magnetism states that the flux of the magnetic field through any closed surface is zero (as shown in the below figure).
It is because inside the closed surface simplest magnetic element is a magnetic dipole with both the poles (since magnet with monopole does not exist). So a number of magnetic field lines entering the surface are equal to the number of magnetic field lines leaving the surface. So the net magnetic flux through any closed surface is zero.
I.e Gauss law for closed surface-
Gauss law if the surface is open
i.e Consider an element of the area
So, the total flux through the surface is
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