Magnetic Effects Of Current

MAGNETIC EFFECT OF CURRENT


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MAGNETIC MATERIALS


       On the basis of magnetic properties all the materials have been divided into three types:

    1. Diamagnetic materials

    2. Paramagnetic materials, and

    3. Ferromagnetic materials

Diamagnetic Materials

       The materials which are weakly magnetized in the direction opposite to that of magnetic field in which they are placed are called diamagnetic materials. Thus, these materials are weakly repelled by a magnet.

Examples of Diamagnetic Materials

       Copper, gold, hydrogen, bismuth, antimony, air, water etc.

Gold Copper


Paramagnetic Materials

       The materials which are weakly magnetized in the direction of magnetic field in which they are placed are called paramagnetic materials. Thus, these materials are weakly attracted by magnets.

Examples of Paramagnetic Materials

       Aluminium, platinum, uranium, chromium, salts of iron, nickel, oxygen, copper sulphate etc.

Paramagnetic Materials


Ferromagnetic Materials

       The materials which are strongly magnetized in the direction of magnetic field in which they are placed are called ferromagnetic materials. Thus, these materials are strongly attracted by magnets.

Examples of Ferromagnetic Materials

       Iron, nickel, cobalt etc.

Ferromagnetic Materials



Test Your Understanding and Answer These Questions:




  1. Explain various types of magnetic materials.

  2. What are diamagnetic materials? Give examples.

  3. What are paramagnetic materials? Give examples.

  4. What are ferromagnetic materials? Give examples.