what is magnetization? and write any two ways to magnetisation magnet ?
Answers
Answer:
There are two methods generally used to magnetize permanent magnets: static magnetization and pulse magnetization. The first magnetizes via a static electromagnetic field and normally only generates a magnetic field of up to 2MA/m.
In classical electromagnetism, magnetization or magnetic polarization is the vector field that expresses the density of permanent or induced magnetic dipole moments in a magnetic material. ... Physicists and engineers usually define magnetization as the quantity of magnetic moment per unit volume.
1. Double-touch method — Opposite poles of two magnets are placed next to each other at the center of the magnetic substance and rubbed in opposite direction along it.
2. Electric current — A magnet made by using electric current is called an electromagnet. It is a temporary magnet and stops behaving like a magnet when the current is stopped. Electromagnets can become permanent magnets if certain materials like steel and special alloys are placed in a coil and very strong current is passed through the coll.