# Magnetic Field Strength Formula

## Magnetic Field Strength Formula

The Magnetic Field Strength Formula is discussed in this article. The Magnetic Field Strength Formula refers to one of two ways in which a magnetic field can be expressed. It is unmistakably distinct from the magnetic flux density. Furthermore, when an electric current flows via a wire, a magnetic field is formed. The magnetic field’s direction is determined by the current’s direction. Magnetic field visualisation may be done using field lines. Furthermore, the magnetic field intensity correlates to the density of the field lines.

### What is Magnetic Field Strength

The Magnetic Field Strength Formula is the ratio of the MMF necessary to generate a certain Flux Density within a material per unit length of that material. Some experts refer to it as magnetic field intensity.

Furthermore, the magnetic flux denotes the total number of magnetic field lines that pass through a certain location. Furthermore, when one moves away from a straight current-carrying wire or a straight line connecting a pair of magnetic poles around which the magnetic field is steady, the magnetic flux density decreases.

The Magnetic Field Strength Formula is a physical parameter that is used as one of the primary metrics of magnetic field intensity. The magnetic field strength is measured in amperes per metre, or A/m.

Furthermore, the sign for magnetic field intensity is ‘H.’ Magnetic field strength is a quantitative measure of the magnetic field’s strength or weakness. It is also the force experienced by a unit north pole of one-weber strength at a certain place in the magnetic field.

### Magnetic Field Strength Formula and Derivation

The magnetic field produced by the currents are commonly referred to as the magnetic field B. B is also known as magnetic flux density or magnetic induction. Tesla is the unit of measurement for magnetic fields. However, when these fields are formed and travel through magnetic material, which has its magnetic field, doubt might develop as to what part of the magnetic field is caused by external current and what part is caused by the magnetic material itself. To describe the notion, we establish a quantity called magnetic field strength (H). H is measured in amperes per metre.

The Magnetic Field Strength Formula expresses the connection between the magnetic field (B) and the magnetic field strength (H).

The Magnetic Field Strength Formula  H = B/μm = B/μ0 – M

Where,

M is cited as the magnetization of the material

μ0 noted as magnetic permeability of space

### Solved Example on Magnetic Field Strength

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