Draw field lines on a bar magnet, a current carrying finite solenoid and electric dipole.
Draw field lines on a bar magnet, a current carrying finite solenoid and electric dipole.
In figure, the field lines of $(a)$ a bar magnet,$(b)$ a current carrying finite solenoid and $(c)$ electric dipole are shown.
Field lines represents the picturetorial representation of the field's existance.
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