Calculate the Flux Density of a Rectangular Magnet with a Backplate 

Use to calculate the flux density at a distance X above the surface and on the center-line of a rectangular shaped magnet, which has been placed on a soft iron backplate..

Enter the Length, Width, and Thickness of the magnet, distance X from the surface, select the material from the pull down menu, and press the Calculate button for the result. Distance units can be in any system.





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