First slide

Magnetism

Question

The net magnetic flux through any closed surface is zero. Which of the following law encapsulates this statement.

Easy

A

Guass’s law in Magnetism
B

Guass law in electrostatics
C

Coulomb’s law in magnetism
D

Coulomb’s law in electrostatics

Solution

Key : 1 Guass law in magnetism $\oint B d s = 0$ (Because monopoles do not exist)
Key : 2 Guass law in electrostatics is $\oint E d s = \frac{q}{ε_{0}}$
Key : 3 Coulomb’s law in magnetism $F = \frac{μ_{0}}{4 π} \frac{m_{1} m_{2}}{r^{2}}$
Key : 4 Coulomb’s law in electrostatics $F = \frac{1}{4 π ε_{0}} \frac{q_{1} q_{2}}{r^{2}}$

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