Question: Is magnetic field and magnetic induction are same?

Most textbooks on electricity and magnetism distinguish the magnetic field H and the magnetic induction B. Yet, in practice physicists and chemists almost always call B the magnetic field, which is because the term “induction” suggests an induced magnetic moment.

What is called magnetic induction?

1 : induction of magnetism in a body when it is in a magnetic field or in the magnetic flux set up by a magnetomotive force —symbol B. 2 : the product of the magnetic permeability of a medium by the intensity of magnetic field in it. — called also magnetic flux density.

Is magnetic field and magnetic flux density same?

In literature, the terms “magnetic field”, “magnetic flux” and “flux density” are often used as synonyms. This is not correct because they are different physical values, but they are closely linked.

What is the relationship between a magnetic field and a magnetic force?

Magnetic Force

The force is perpendicular to both the velocity v of the charge q and the magnetic field B. 2. The magnitude of the force is F = qvB sinθ where θ is the angle < 180 degrees between the velocity and the magnetic field.

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Where is magnetic induction used?

Today, electromagnetic induction is used to power many electrical devices. One of the most widely known uses is in electrical generators (such as hydroelectric dams) where mechanical power is used to move a magnetic field past coils of wire to generate voltage.

What is SI unit of magnetic field?


What is magnetic flux density formula?

The magnetic field vector B is defined by the force it would apply to a charge moving in it. B = F/qv, so the units are (N *s) / (C *m), which we call a Tesla, or T. This is also called flux density. Flux is then given by B*A, so it is in T*m^2, which we also call a Weber.

Why is B used for magnetic field?

What is the historical reason for denoting magnetic filed “B”? … A is still used for vector potential, B for magnetic field (or magnetic induction or flux density, depending who you ask), H for magnetic intensity, etc. Maxwell used C and G for other vectors that I don’t recall at the moment.

What is the magnetic field formula?

The magnetic field formula contains the c o n s t a n t μ 0 constant^{mu_{0}} constantμ0. This is known as permeability of free space and has a v a l u e 0 μ value^{mu}_{0} value0μ = 4 π × 1 0 − 7 ( T ⋅ m 4pi times 10^{ -7} (T cdot m 4π×10−7(T⋅m/ A).

What are the factors that affect magnetic force?

Factors that can affect a magnet’s strength include:

  • Heat.
  • Radiation.
  • Strong electrical currents in close proximity to the magnet.
  • Other magnets in close proximity to the magnet.
  • Neo magnets will corrode in high humidity environments unless they have a protective coating.
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Is magnetic field a force?

Magnetic force, attraction or repulsion that arises between electrically charged particles because of their motion. It is the basic force responsible for such effects as the action of electric motors and the attraction of magnets for iron.

What is magnetic field in simple words?

The magnetic field is the area around a magnet in which there is magnetic force. Moving electric charges can make magnetic fields. … In physics, the magnetic field is a field that passes through space and which makes a magnetic force move electric charges and magnetic dipoles.

What causes magnetic induction?

If a coil of wire is placed in a changing magnetic field, a current will be induced in the wire. … A changing magnetic field through a coil of wire therefore must induce an emf in the coil which in turn causes current to flow.

Is electromagnetic induction AC or DC?

Uses & Design Differences. AC and DC generators both use electromagnetic induction to generate electricity. … But in a DC generator, a direct current flows in one direction. In an AC generator, the coil through which current flows is fixed and the magnet usually moves.

How is magnetic induction done?

Induction (Electromagnetic Induction) – is the production of current in a conductor as it moves through a magnetic field. … Due to Faraday’s Law of Induction if you take a wire and move it back and forth in a magnetic field, you cut across the lines of flux. The magnetic field pushes on electrons in the metal.

A magnetic field