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Topic Content:

  • Meaning of Magnetic Field
  • Magnetic Substance and Magnetism
  • Poles of a Magnet
  • Position of a Freely Suspended Magnet
  • Law of Magnetism

A magnetic field is a region or space around a magnet within which the influence or force of a magnet is felt by a magnetic substance or another magnet. It is a vector field.

When a bar magnet is placed near a magnetic substance or material, the magnetic material is usually attracted to the magnet due to the magnetic force existing around the magnet. The magnetic force is present in the magnetic field surrounding the magnet.

Magnetic Substance and Magnetism:

A magnetic substance is a substance that can be attracted by a magnet. Examples of magnetic substances include iron, nickel, cobalt, stainless steel, and many rare earth metals.

Magnetism is the ability of a magnet to attract a magnetic substance. The magnetism of a magnet is concentrated at the poles of the magnet.

Poles of a Magnet:

When iron filings are sprinkled on a bar magnet, the pattern shown by iron filings indicates the direction of the field surrounding the magnet. It is observed that the filings are concentrated at the ends of the magnets which are called poles.

pole
Iron filings are concentrated at the ends of the magnets which are called poles.

 

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