what is magnetic field ? how can the direction of magnetic field lines at a place be determined?
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The direction of the magnetic field at a point can be found by placing a small magnetic compass at that point. The north end of the needle indicates the direction of the field. Two important properties of the magnetic lines of force are: The magnetic lines of force start from north pole and terminate at south pole.
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A region around a magnetic material or a moving electric charge within which the force of magnetism acts.The direction of magnetic field lines at a place can be determined by using a compass needle. A compass needle placed near a magnet gets deflected due to the magnetic force exerted by the magnet. The north end of the needle of the compass indicates the direction of magnetic field at the point where it is placed.
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