In addition a lot of electric equipment that we use, wait like air conditioning, blower, oven, cleaner and coffeepot, the magnetic field strength that they generate and its power become direct ratio.

• 此外我们使用的许多电器，如空调、吹风机、烤箱、吸尘器和咖啡壶等，它们所产生的磁场强度与其功率成正比。