Question

Which of the following equations can be used to show that magnetic field lines form closed...

Which of the following equations can be used to show that magnetic field lines form closed loops?

1. Gauss's Law of Electricity

2. Faraday's Law

3. Lorentz Force Law

4. Ampere-Maxwell Relation

3. Gauss's Law of Magnetism

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Answer #1

the equation that can show that the magnetic field lines from closed loop is

5.Gauss's law of Magnetism

Gauss's law for magnetism is one of the four Maxwell's equations that underlie classical electrodynamics. It states that the magnetic field B has divergence equal to zero, in other words, that it is a solenoidal vector field. It is equivalent to the statement that magnetic monopoles do not exist. Hence , only magnetic dipoles exist and hence , the magnetic field lines are always closed

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