# Magnetism Formula

## Magnetism Formula

Magnetism is a physical phenomenon that is caused by magnetic fields. Magnetic fields are generated by the magnetic moments and electric currents of elementary particles. Magnetic fields have a strong attraction for ferromagnetic materials. As a result, they can be easily attracted towards permanent magnets. Cobalt, nickel, iron, and their alloys are examples of ferromagnetic compounds. Temperature, as well as other factors such as magnetic field and pressure, influence a material’s magnetic state.

## Magnetism Formula

When an item travels at the speed of light, it experiences length contraction. As a result, relativity enters the scene. As a result, when an item travels at the speed of light, length contraction occurs. This is defined as a decrease in length if a body is travelling at the speed of light and is attached to the observer.

### Definition of Magnetism:

The Magnetism Formula is a natural phenomenon in which some metals exhibit the property of attraction. These metals can be found naturally in rock formations as well as in electrical and nuclear systems. The Magnetism Formula characteristics were found and documented as early as AD 20. However, Aristotle communicated the characteristics of magnets to his contemporaries without using the correct language. There are two major sources of magnetic behaviour, both of which are exploited to make “permanent” magnets. These magnets typically consist of a coil of wire firmly wrapped around a metal item and attached to a power source. Electromagnetism refers to this sort of magnet.

Electromagnets are also employed in various communication equipment. Consider the magnetic field that surrounds a magnet. A magnet pulls little bits of iron from a long distance. As a result, the magnetic force, like the electric and gravitational forces, acts at a distance. A magnetic field is included in this concept of a force. The force that one magnet exerts on another may be thought of as their interaction in a magnetic field. Drawing field lines around the magnet is a simple way to describe the magnetic field surrounding it. As a result, the magnetic force is the product of electromagnetic force and is created by charge motion. One can refer to them as moving charges that are surrounded by a magnetic field.

### The formula for Magnetism:

The Magnetism Formula is as follows:

• The magnetic field of straight current-carrying wire is B=μ0I/2πd
• Magnetic Force:

The formula is F=q[E(r)+v×B(r)]

F is noted as a magnetic vector

I is defined as the current magnitude

L is cited as a length vector

B is referred to as the magnetic field vector

Θ is denoted as the angle between length and magnetic field vectors (radians)

n signifies cross-product direction vector (unitless)

### Solved Examples

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