The definition of H is H = B/μ − M, where B is the magnetic flux density, a measure of the actual magnetic field within a material considered as a concentration of magnetic field lines, or flux, per unit cross-sectional area; μ is the magnetic permeability; and M is the magnetization. …

A charged particle moving without acceleration produces an electric as well as a magnetic field. It produces an electric field because it’s a charge particle. All of a sudden when it starts moving, it starts producing a magnetic field.

Originally Answered: Why do we take B as the symbol for magnetic field induction? It looks like Maxwell used B for first time to represent magnetic flux density. Still it is continuing.

The difference between B and H is that B is used for representing the magnetic flux density while H is used for representing the magnetic field intensity.

To explain the difference between the two consider the magnets below: Magnet A is smaller than magnet B. They both have the same “magnetism”, that is the same amount of total flux. The magnetic flux density is a product of the magnetic flux and the area that this flux is present within.

When a coil of wire is moved through a magnetic field a voltage is generated which depends on the magnetic flux through the area of the coil. Electric motors and generators apply Faraday’s law to coils which rotate in a magnetic field as depicted in Figure 3. In this example the flux changes as the coil rotates.

Faraday’s law states that the EMF induced by a change in magnetic flux depends on the change in flux Δ, time Δt, and number of turns of coils.

The magnetic flux through the plane of the coil has its maximum value when this plane is perpendicular to the magnetic field lines between the poles. As the coil turns and the plane of the coil becomes parallel to the field lines, the flux becomes zero.

The magnetic flux through an area element is (i) maximum when the magnetic induction is the direction of the area vector, and (ii) Zero when the magnetic induction is perpendicular to the area vector.

Gauss’ Law for magnetism applies to the magnetic flux through a closed surface. Because magnetic field lines are continuous loops, all closed surfaces have as many magnetic field lines going in as coming out. Hence, the net magnetic flux through a closed surface is zero.

Magnetic field lines can never cross, meaning that the field is unique at any point in space. Magnetic field lines are continuous, forming closed loops without beginning or end. They go from the north pole to the south pole.

While the magnetic flux through a closed surface is always zero, the magnetic flux through an open surface need not be zero and is an important quantity in electromagnetism.

Answer. Explanation:Inside any closed surface, there will always be magnetic dipoles. Since each pole of the dipole will provide equal and opposite flux through the surface, yeah the magnetic flux through a closed surface will be always zero. There, the net flux will in general be non-zero.

This ring has a surface inside it. When the surface is open, the magnetic flux is not always 0! We can simply find a place in the field where there is more lines going in one direction than in the other. And a open surface placed there will not has a 0 magnetic flux.