How to calculate magnetic flux density. Magnetic flux density unit. A cross sectional area in square meter. The relationship between total flux and flux density is given by the following equation.
One tesla equals one weber per square meter wbm 2. A x 2t b sqrt r2 x2 c sqrt r2 a2. Magnetic flux density formula.
Ftotal magnetic flux in weber. Bflux density in tesla. Rod magnet radius and thickness are relevant in flux density calculations.
Flux per unit of cross sectional area is called flux density. B br2 ac xb. Formula for cylinder magnet flux density.
The magnetic flux density is measured in webers per square meter wbm2 which is equivalent to teslas t. The b field is a vector field which means it has a magnitude and direction at each point in space. B b r 2 d z r 2 d z 2 z r 2 z 2 begin alignedb frac br 2left frac dz sqrt r2 dz2 frac z sqrt r2z2rightend aligned b.
In equation is the permeability of the medium material where we are measuring the fields. Its letter symbol is b. Flux density can be some distance away from the magnet or at the magnet surface.