What is the formula for the flux in pole body?

In electromagnetic theory, particularly when dealing with magnetic circuits, the formula for the magnetic flux ((Phi)) in a pole body or in any section of a magnetic circuit can generally be derived from the relation between flux ((Phi)), magnetic field strength (H), and the magnetic path length (l). The basic formula to calculate magnetic flux is given by:

[

Phi = frac{B cdot A}{mu}

]

Where:

– (Phi) is the magnetic flux, measured in Webers (Wb).

– (B) is the magnetic flux density, measured in Teslas (T).

– (A) is the cross-sectional area through which the flux is passing, measured in square meters (m²).

– (mu) is the magnetic permeability of the material, measured in Henries per meter (H/m).

For a more specific formula related to the “flux in pole body,” it’s important to clarify the context as different domains might have slightly different formulas based on the assumptions (like uniform magnetic field across the pole, the shape of the pole, etc.). However, in most practical electrical engineering applications concerning electromagnetics, the above formula provides the basic premise for calculating magnetic flux in a given pole body provided you have the magnetic flux density and the cross-sectional area. Note that magnetic permeability ((mu)) is a measure of how much the magnetic field can penetrate the material and it’s a product of the permeability