The discussion clarifies the fundamental differences between permanent magnets and electromagnets. A permanent magnet maintains its magnetic field without an external power source, relying on the alignment of electron spins, while an electromagnet requires electric current through a coil to generate its magnetic field. Materials such as steel are recommended for creating permanent magnets due to their remanence, whereas soft iron is suitable for electromagnets but has low remanence. Techniques for magnetization, including the stroking method and the use of strong electromagnets, are also discussed.
PREREQUISITESThis discussion is beneficial for physics students, hobbyists interested in magnetism, and engineers working with magnetic materials and devices.
Xidike said:if a conductor is placed in magnetic field then How can magnet cause the flow of current in that conductor ?
It will cause his ticket machine to burst into flames.Xidike said:if a conductor is placed in magnetic field then How can magnet cause the flow of current in that conductor ?