Magnetisation and Magnetic Intensity | Physics

The Magnetic behaviour of a magnet is characterized by the alignment of the atoms inside a substance. When a ferromagnetic substance is brought under the application of a strong external magnetic field. Copy the link given below and paste it in new browser window to get more information on Magnetisation and Magnetic Intensity www.askiitians.com/iit-jee-magnetism/magnetisation-and-magnetic-intensity/

1. Magnetisation and Magnetic intensity

2. Magnetic intensity The magnetic intensity at any point is defined as the force experienced by a unit pole when subjected to an external magnetic field.

3. Intensity of magnetisation Intensity of magnetisation is defined as the magnetic moment change per unit volume or pole strength per unit area Mathematically, I=M/V since M= mX2l and V= Ax2l = m/A The unit of intensity of magnetisation is given by ampere/metre

4. Induced magnetisation Induced magnetisation is the process by which a non magnetic material can be magnetized. For example, when a wire is wrapped around a iron nail and connected to a battery, due to the flow of current in the solenoid the iron nail, behaves as a magnet. This process is also known as electromagnetism, which means induction of magnetic fields by the presence of current.

5. Conclusion When a non magnetic material is subjected to an external magnetic field it gets magnetized. This process is known as magnetic induction. When the induction is done through current, then it is known as electromagnetism. The induced magnetic field has different force at different points.

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