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Q: Why the magnetic field lines do not intersect each other?
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Why do two magnetic lines never intersect each other?

It is important to realize that magnetic lines do not really exist! They are a tool to visualize the magnetic field, but the field is continuous and does not exist solely inside lines. The direction of the lines gives the direction of the magnetic field, the density of lines, its strength. This also explains why no two field lines can ever intersect; a field line carries information about the direction of the magnetic field, if they would intersect an ambiguity would arise about the direction (not to mention a field of apparent infinite strength since the density would be infinite at the point of crossing). The field lines are almost never used in explicit calculations; instead one uses a vector, an entity which contains information about the magnitude and direction of a field in every point in space and time. Adding two magnetic fields is then easy; just add the vectors of both fields in every point in space (and time). You can use the resulting vector field to draw field lines again if you want. An easy way to imagine what would happen to field lines when they might intersect is to look at them as being such vectors. Imagine you have one field line pointing to the right, and another one pointing up. The result of adding would be a field line pointing somewhere in the up-right direction (the exact direction depending on the relative magnitudes of the fields). If the fields are equal in magnitude but opposite in direction they would cancel; the field line disappears. But this is to be expected! The magnetic fields canceled each other in that point! One has to take care with this analogy however; as for field lines the measure of magnitude is their density; which is an undefined thing if you are considering just one field line per field. For a vector however, the measure of magnitude is its length. Therefore adding two field lines of the same magnitude and pointing in the same direction would result in a vector of twice the length, but in field line language you would have to double the density at that point. This is one of the reasons field lines are used for visualization but not calculation. By the way, all these things apply to other fields as well. Electric fields can also be represented by field lines, and they as well cannot intersect (for the same reasons). Electric field lines, however, are not necessarily closed loops like magnetic field lines (this has to do with the non-existence of magnetic monopoles).


Why don't two magnetic lines of force intersect each other?

because they are solid lines and they do not have space to be combining. Also the magnetic can stay together but not melt to being a diffusion (not liquid)


Do horizontal lines intersect?

No, horizontal lines are parallel to each other and parallel lines never intersect.


What are lines in a plane that cross or intersect each other?

Lines that that intersect each other at right angles on a plane are perpendicular lines.


Where does perpendicular lines intersect?

Perpendicular lines intersect at right angles to each other.

Related questions

How are magnetic field lines arranged?

Magnetic field lines spread out from one pole, curve around the magnet, and return to the other pole.. . ah, they don't actually spread out from the poles, inside the magnet they are bunched together but they still form closed loops with the lines outside.


Why magnetic field lines are closer at the bottom?

Magnetic field lines are closer at the bottom of a magnet because the magnetic field strength is stronger in that region. This increase in field strength causes the field lines to compress closer together. The field lines spread out as they move away from the magnet, resulting in the characteristic pattern of magnetic field lines emerging from the poles and converging at the other side.


Imaginary lines of force around a magnet?

Imaginary lines of force around a magnet are called magnetic field lines. They represent the direction and strength of the magnetic field. These lines provide a visual way to understand how magnetic fields behave and interact with other magnets or magnetic materials.


Why do two magnetic lines never intersect each other?

It is important to realize that magnetic lines do not really exist! They are a tool to visualize the magnetic field, but the field is continuous and does not exist solely inside lines. The direction of the lines gives the direction of the magnetic field, the density of lines, its strength. This also explains why no two field lines can ever intersect; a field line carries information about the direction of the magnetic field, if they would intersect an ambiguity would arise about the direction (not to mention a field of apparent infinite strength since the density would be infinite at the point of crossing). The field lines are almost never used in explicit calculations; instead one uses a vector, an entity which contains information about the magnitude and direction of a field in every point in space and time. Adding two magnetic fields is then easy; just add the vectors of both fields in every point in space (and time). You can use the resulting vector field to draw field lines again if you want. An easy way to imagine what would happen to field lines when they might intersect is to look at them as being such vectors. Imagine you have one field line pointing to the right, and another one pointing up. The result of adding would be a field line pointing somewhere in the up-right direction (the exact direction depending on the relative magnitudes of the fields). If the fields are equal in magnitude but opposite in direction they would cancel; the field line disappears. But this is to be expected! The magnetic fields canceled each other in that point! One has to take care with this analogy however; as for field lines the measure of magnitude is their density; which is an undefined thing if you are considering just one field line per field. For a vector however, the measure of magnitude is its length. Therefore adding two field lines of the same magnitude and pointing in the same direction would result in a vector of twice the length, but in field line language you would have to double the density at that point. This is one of the reasons field lines are used for visualization but not calculation. By the way, all these things apply to other fields as well. Electric fields can also be represented by field lines, and they as well cannot intersect (for the same reasons). Electric field lines, however, are not necessarily closed loops like magnetic field lines (this has to do with the non-existence of magnetic monopoles).


Why don't two magnetic lines of force intersect each other?

because they are solid lines and they do not have space to be combining. Also the magnetic can stay together but not melt to being a diffusion (not liquid)


Magnetic field lines cross each other?

No, they don't.


What happens when a magnets magnetic field lines are close together?

When a magnet's magnetic field lines are close together, it indicates a strong magnetic field. The magnetic field strength is higher, leading to more intense interactions with nearby objects and potentially stronger magnetic forces acting between the magnet and other magnetic materials.


Do magnetic field lines ever cross each other at any point?

No, magnetic field lines do not cross each other at any point. This is a fundamental property of magnetic fields known as the "no crossing rule". If lines were to cross, it would imply the existence of multiple directions for the magnetic field at that point, which is physically impossible.


Why magnetic field lines are more crowded at the poles?

Magnetic field lines are more crowded at the poles because the magnetic field strength is stronger in those regions. Since the field lines originate from one pole and terminate at the other, the lines become more concentrated as they move towards the poles. This concentration is due to the converging nature of the field lines as they approach the poles.


Do magnetic field lines spread out from the poles and curve around to the other poles?

Yes, magnetic field lines spread out from one pole and curve around to the other pole in a closed loop. This creates a continuous path for the magnetic field to flow from one pole to the other, forming a complete circuit.


What occurs to the magnetic field lines when the magnets have opposite poles facing each other?

The field lines are parallel and create an attractive force field.


Do horizontal lines intersect?

No, horizontal lines are parallel to each other and parallel lines never intersect.