In physics, specifically electromagnetism, the magnetic flux through a surface is the surface integral of the normal component of the magnetic field B over that surface. It is usually denoted Φ or Φ_{B}. **The SI unit of magnetic flux is the weber (Wb; in derived units, volt–seconds)**, and the CGS unit is the maxwell.

The equation for calculating the force on a wire is Force (N) = magnetic flux density (T) × current (A) × length (m) or, in short **F = B I L**.

Magnetic flux is **a measure of the quantity of magnetism, being the total number of magnetic lines of force passing through a specified area in a magnetic field**. Magnetic flux through a plane of area A placed in a uniform magnetic field B can be written as. ϕB=B. A=BAcosθ

Magnetic flux is defined as **the number of magnetic field lines passing through a given closed surface**. It provides the measurement of the total magnetic field that passes through a given surface area.

The **tesla** (symbol: T) is a derived unit of the magnetic B-field strength (also, magnetic flux density) in the International System of Units. tesla.

magnetic flux density. **A vector quantity measuring the strength and direction of the magnetic field around a magnet or an electric current**. Magnetic flux density is equal to magnetic field strength times the magnetic permeability in the region in which the field exists.

SI unit of magnetic flux is weber. **it is a vector quantity**

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**Magnetic field describes a region where a magnetic force can be felt.** **Magnetic flux describes how much magnetic field passes through an area**.

In physics, specifically electromagnetism, the magnetic flux through a surface is the surface integral of the normal component of the magnetic field B over that surface. It is usually denoted Φ or Φ_{B}. **The SI unit of magnetic flux is the weber (Wb; in derived units, volt–seconds)**, and the CGS unit is the maxwell.

Magnetic flux density at a point is **the number of magnetic lines of force passing through the unit area around the point in the normal direction**.

In a transformer, the magnetic flux **created by the primary coil induces a current in the core**. This occurs in order to oppose the charge that produced the magnetic flux (Lenz's Law). The currents flowing in the core are called eddy currents. These currents produce heat, using up energy and so causing inefficiency.

Magnetic flux is **a measurement of the total magnetic field which passes through a given area**. It is a useful tool for helping describe the effects of the magnetic force on something occupying a given area. The measurement of magnetic flux is tied to the particular area chosen.

Magnetic flux density is a vector field which we identify using the symbol **B** and which has SI units of tesla (T).

Explanation: Magnetic flux refers to **the total number of magnetic field lines penetrating any surface placed perpendicular to the magnetic field**. It is calculated as the product of the average magnetic field strength and the perpendicular area it penetrates.

In the most general form, magnetic flux is defined as **ΦB=∬AB⋅dA** Φ B = ∬ A B ⋅ d A . It is the integral (sum) of all of the magnetic field passing through infinitesimal area elements dA.

The flux is **the total magnetic field that passes through a given area**. It is a maximum when the magnetic field lines are perpendicular to the area. It is at a minimum when the magnetic field lines are parallel to the area.

The magnetic flux density or magnetic induction is **the number of lines of force passing through a unit area of material**, B. The unit of magnetic induction is the tesla (T).

Dated : 11-Jul-2022

Category : Education