Can a strong magnetic field interfere with electronic stuff or electrical stuff?
Yes. Some devices work by measuring magnetic fields. An electronic compass, an electronic level, or some smoke detectors measure changes in a magnetic field. A strong magnetic field can interfere with radio waves. For example, put a strong bar magnet next to a cell phone. You get extremely poor reception. A truly strong magnetic field can prevent electrons from flowing through circuits. Some quartz crystals, antenna, inductors, LCDs, and semi-conductor transistors has extremely small tolerances and don’t function if the electron flow is impeded. For example, try using a calculator within an MRI machine. Finally, some electronic devices can be damaged by extremely strong magnetic fields. For example, a device which uses a capacitor might now hold extra charge and damage circuits next to the capacitor. A circuit using resonance — say radio receivers — can get burned out if the magnetic field causes the inductor to resonate outside expected levels. A temp magnet is a device whose magnet
