Why is there permanent magnetism? Does that means perpetual mobile?

According to the Maxwell equations, maintaining a static magnetic field needs not additional energy supply into the system. The energy trans...

Why does sintered Nd-Fe-B provide higher magnetic field when device size is limited to several centimeters?

2.Magnetic moment can be measured (with) by using the Helmboltz coil. Take a sintered Nd-Fe-B of 10×10×10 mm (SANMAG-N48M) for example, its ...

Product Notes

•Do not place magnets near person wearing electrical medical equipment, such as pacemaker, because the magnets may result in malfunction of ...

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