How to calculate magnetic flux density gcse. Where f is the flux and a is the cross sectional area in square meters m 2 of the magnetic field. Formula for cylinder magnet flux density. Its letter symbol is b.
Formula for the b field on the symmetry axis of an axially magnetised cylinder magnet disc or rod. 50 cm 50 100 05 m. Magnetic flux density unit.
Force on a conductor carrying a current magnetic flux density current length. 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. Force 04 n.
One tesla equals one weber per square meter wbm 2. If the magnetic field isperpendicular to the object then use the calculator above which computes the magnetic flux at. Then substitute the values into the equation.
The relationship between total flux and flux density is given by the following equation. Its symbol is b and its si unit is the tesla t. A cross sectional area in square meter.
The following magnetic density formula expresses the flux density. The magnetic flux density is the amount of flux per unit area perpendicular to the magnetic field. Magnetic flux density formula.
Force 04 2 05. The magnetic flux value depends on the magnetic field direction and it is a vector quantity. O angle between the magnetic field and normal to the surface.
The magnetic flux formula is given by where b magnetic field a surface area and. Flux per unit of cross sectional area is called flux density. Bflux density in tesla.
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.
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