What are magnets and electromagnets
Magnet Definition
A magnet is an object that has the property of attracting certain substances, such as iron, due to a magnetic field.
Difference Between Permanent Magnet and Electromagnet
Permanent magnets are made of ferromagnetic materials and are magnetized by a strong external magnetic field. The hard magnetic material used retains its partial magnetization after the external magnetic field is switched off. Typically, the magnetic field is strongest inside a magnetic material. The strongest external magnetic fields are located near the poles.
Permanent magnets can utilize a simple design with no moving parts, provide constant magnetic strength, and are immune to power failures.
Electromagnets usually take the form of iron core solenoids. In an electromagnet, the magnetic field is created by current in a wound coil and is reinforced by a soft iron core. The magnetism disappears after a power failure.
