Properties of Magnetic Field Lines-Magnetic field lines have the following properties-1) They are closed and continuous curves. The representation of magnetic fields by magnetic field lines is very useful in visualizing the strength and direction of the magnetic field. Magnetic field lines are continuous and unbroken, forming closed loops. A magnetic field line can never cross another field line. Near to South and North Pole of a magnet, the magnetic field is stronger and will get weaker when it moves away from the poles. So, although iron filings do appear to show magnetic field lines, it’s because they change the magnetic field to cause that behavior. The magnitude of a field is indicated by its line’s density. As shown in Figure \(\PageIndex{3}\), each of these lines forms a closed loop, even if not shown by the constraints of the space available for the figure. B-field: A synonym for the magnetic field. If at any point on such a line we place an ideal compass needle, free to turn in any direction (unlike the usual compass needle, which stays horizontal--such needles exist, see bottom of page) then the needle will always point along the field line (drawing below).

Magnetic field lines similarly describe the structure of magnetic fields in three dimensions.They are defined as follows. MAGNETIC FIELD | FIELD LINES | BAR MAGNET - Interactive Free flash animation to show the field lines. Magnetic Field has Magnitude Some Magnets have higher Strength than Other Magnets This Magnetic Strength is shown by degree of closeness of field lines to each other More crowded the field lines, more strong is the magnet The magnetic fields line are closer to each other at poles, but are widely apart at other places.

The magnetic field is unique at every point in space. Solar Flares . Magnetic field lines are defined to begin on the north pole of a magnet and terminate on the south pole. This concept can be clarified by doing a simple experiment. Fix a sheet of white paper on a table and place a bar magnet at the center. In the comments to this article, anorlunda pointed out another situation often described as something related to magnetic field lines – solar flares. Magnetic field lines are imaginary lines around the magnet. 2) Outside the magnet, they are directed from the north pole towards the south pole of the magnet. * A magnetic field lines is an imaginary curve along which a free unit north pole tends to move. Magnetic field lines emerges from North pole and enter the magnet at south pole.Inside the magnet direction of field line is from south pole to north pole.

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