Question

Gauss law in magnetism concludes that

• A. mono-pole does not exist
• B. magnetic flux can be determined
• C. $▽\times B=0$
• D. $▽.B=0$

Answer 1

Answer: (A)

mono-pole does not exist

Gauss law of Magnetism is one of the four fundamental Maxwell's equations. Integral form of the law is ${\int }_S\overrightarrow{B}\cdot d\overrightarrow{a}=0$,

the integral depicts the flux of magnetic field in the given surface.

For any given surface $S$, the field lines entering the surface and leaving the surface are equal, therefore there is no total 'magnetic charge' build up in any point of the space, which simply implies there is no thing called 'magnetic monopoles in magnetism.