Thanks! My limited googling just yielded electromagnetic interference. Do you have any more information about playing magnetic interference?vanhees71 said:Sure, if you put a magnet close to a material the before randomly oriented dipole moments of the electrons inside the material are (partially) ordered, which provides additional contributions to the magnetic field imposed. That's quite analogous to the electric field where the electric dipole moments are also ordered (and/or, if you have a conductor the charge distribution of the medium changes due to the electric force imposed by the imposed electric field).
Magnetic interference, also known as magnetic noise, is the disruption of a magnetic field by external sources. This can affect the accuracy and reliability of electronic devices that rely on magnetic fields, such as compasses or magnetic sensors.
Magnetic interference can occur when external sources generate their own magnetic fields, causing them to interfere with the intended magnetic field. This can happen through electromagnetic radiation, electrical currents, or other magnetic fields.
Magnetic interference can cause distortion or disruption in the intended magnetic field, leading to inaccuracies in measurements or malfunctions in electronic devices. It can also affect the performance of magnetic materials, such as magnets or magnetic storage media.
There are several ways to prevent or reduce magnetic interference. This can include shielding sensitive electronic devices with materials that block magnetic fields, using filters or chokes to block unwanted electromagnetic radiation, or carefully designing and placing electronic components to minimize the effects of magnetic interference.
Scientists use various instruments and techniques to study and measure magnetic interference. This can include magnetic field sensors, such as magnetometers, and specialized equipment to generate and measure magnetic fields. Computer simulations and mathematical models can also be used to analyze and predict magnetic interference in different scenarios.