1. What is a magnetic field? How can the direction of magnetic field lines at a place be
determined?
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The magnetic field direction is the same direction a compass needle points, which is tangent to the magnetic field line at any given point. ... Magnetic field lines are continuous and unbroken, forming closed loops. Magnetic field lines are defined to begin on the north pole of a magnet and terminate on the south pole.
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A magnetic field line is the path along which a free north-pole tends to move. The direction of a magnetic field at a point is determined by placing a small compass needle. The N - pole of compass indicates the direction of magnetic field at that
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