Describe the magnetic field line of force of a needle
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magnetic lines of force the space around a magnetic in which standard of a compass waste in a direction other than north south direction is called magnetic field it is a vector quantity it has a magnitude as well as direction
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the direction of magnetic field lines is defined to be the direction in which the north end of a compass needle points. The magnetic field is traditionally called the B-field. Figure 1. Magnetic field lines are defined to have the direction that a small compass points when placed at a location.
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