👉 A device or process used to remove magnetic fields from a surface, typically in order to produce an un-magnetic surface. The term is often associated with the removal of electromagnets and other devices that emit strong electromagnetic fields. In physics, the term "demagnetizer" refers to a device that can be used to remove magnetic fields from a surface by applying electric or magnetic fields perpendicular to the surface while leaving the core of the device unaffected. The process is often used in applications such as removing
