Thursday 30 August 2012

Magnetic Properties of Materials, Types of Substances, Fundamental of Or...


MAGNETIC PROPERTIES OF MATERIALS

We know that matter is made up of atom. Each atom consists of a positively charged nucleus around which electrons revolve in various discrete orbits. Each revolving electron is equivalent to a tiny current loop and gives a dipole moment to the atom. Besides this, electrons also spin on it own axis and this spin also produces a magnetic dipole moment. There are three types of Substances
i. Diamagnetism Substances
ii. Paramagnetism Substances
iii. Ferromagnetism Substances



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