1.All magnetic objects produce invisible lines of force known as magnetic field that extend between the poles of the object.
2.Magnetic field is strongest at the two poles of magnet.
1.Magnetism is a force that acts at a distance which is caused by a magnetic field
2.The magnetic force strongly attracts to unlike poles and repels to like poles
3.If a bar magnet has break into two pieces, each piece will again have a north pole and a south pole
4.No matter how small the pieces of the magnet become, each piece will have a north pole and a south pole
5.Thus, there are no monopoles
6.The magnetic field lines always move from north pole to south pole
7.The magnetic field lines do not cross with each other
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