Q. 15.0( 2 Votes )

Why magnetic fiel

Answer :

Magnetic field lines are closed curve because magnetic monopoles do not exit. Magnetic field lines always have more than one pole. One is the North Pole, and the other one is the South Pole. Outside a magnet direction of magnetic field, lines are from north to the South Pole and inside a magnet the direction if from south to north, hence forming a closed loop.

This can also be understood by the fact that the magnetic field arises due to movement of charge, but there is nothing such as a magnetic charge that will lead to the emergence and termination of magnetic field lines as in the case of an electric charge.

Hence magnetic field lines form closed curves.

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