Why do magnetic lines never cross?
The magnetic field is single valued--at a point in space, it only has one value. If field lines could cross at a point, that would imply the field pointed in different directions at that point.
Why can two lines of force in a magnetic field never cross each other?
Similar to the field line of electric fields the Magnetic field lines never intersect. This is because at every point on the Field line , the tangent to the line at this particular point gives the direction of The Electric /Magnetic field. So if the two lines would intersect , there would be two different tangents at the point of intersection due to two lines. This would mean that the Magnetic /Electric Field at that point would have two Different directions (due to different tangents) which is not Possible. Hence the Lines of force never intersect each other
Can two magnetic lines of force cross each other?
“Lines” of magnetic flux (not really “force”) are a made-up visualization tool; there are no such actual lines, but one uses them to visualize the direction and (by seeing whether they bunch together of spread apart) magnitude of the magnetic field in some region.So if you had two magnets you could draw the “field lines” of each separately (say, one red and the other green) on the same graph, in which case they would certainly “cross” in many places.However, the resultant (actual overall) magnetic field can never have “field lines” crossing, because that would correspond to an infinite field magnitude, which doesn’t exist.
In terms of force or torque on a magnetic compass needle, what do the lines actually represent? Explain.?
A field line is a locus or path that would be created by a construction always acting in the direction that the compass needle points. i.e the tangent to the path at all points is the direction a compass would point. Now from this two lines could never cross. To cross would mean that a compass at that point must point in two different directions at the same time. Clearly this is an impossibility. The lines come together near the poles of the magnets. This implies that the magnetism is concentrated in a smaller area so that the field is stronger at these points.
Why can't magnetic field lines cross?
here is the answer Magnetic field lines are just a representation of the field itself. The lines are not real in that sense, but they tell us where the field is pointing at any chosen point in space. Now if the lines cross, that would mean that the field at the crossing point is pointing in two directions which would be contradicting our original idea. A horse shoe magnet is made of hard magnetic material where the magnetisation is stiff and less flexible than in a soft iron magnet. Hence we do not use a horseshoe magnet for electromagnets because we cannot control the magnetisation as well as we can for the soft iron. However, you can still use electromagnetic methods to magnetise the horseshoe magnet. Nobody knows how earth's field comes about. here is my other answer Field lines don't cross because a magnetic object placed at a point in the field moves only in 1 direction due to attraction or repulsion. If 2 lines crossed, it means the object can move in 2 directions, which is not the case!
Why can 2 magnetic lines of force not intersect each other?
At any given point in space a line of force through that point shows the direction a force would be exerted on a north magnetic monopole located at that point, if monopoles existed.Since no monopoles have yet been found, we make do with the north end of a pivoting dipole magnet, namely the north-pointing end of a compass needle. Note: the north end of the needle is north pointing because the earth’s geographic north pole is actually a south magnetic pole.If two lines crossed, a compass placed at the crossing point would have to point in two different directions at once. Obviously this just isn’t going to happen.This is just a graphic way of illustrating that a single force exerted on something at a given location in 3D space can have one and only one direction, ruling out any crossing of lines of force
Can electric lines of force cross each other?
“Lines of force” do not exist physically - they are a method of mapping the direction of force that a charge or magnetic dipole exerts upon a unit of charge.By definition they cannot cross because they would then be exerting forces in two different directions, and the line would have to change to show the direction of the resultant (vector summation) of the forces.You could, of course, have two different sources for the “lines of force” but they would change from their individual contours to those dictated by the vector summation.From first-year physics: two or more forces acting upon an object can be replaced with one force having a direction and magnitude calculated from the vector summation of the multiple forces. The “line of force” is the directional component of that vector summation.
Properties of magnetic field lines?
1. Magnetic lines of force start from the North Pole and end at the South Pole. 2. They are continuos through the body of magnet 3. Magnetic lines of force can pass through iron more easily than air. 4. Two magnetic lines of force can not intersect each other. 5. They tend to contract longitudinally. 6. They tend to expand laterally.
Why do two electric lines of force never intersect?
First of all, there are no such lines in real life.They are a model physicist invented to depict the behavior and properties of electric fields. And the model is very good at that. But keeping in mind that it’s only a model, we need to think about what these lines actually represent. They representthe orientation (direction) of the electric field - the field goes in the direction along the linesthe field strength - the closer the lines are the stronger the field is and vice versaWhat we need to look at for you question is 2. the field strength. If the drawn lines of our model would intersect (or just touch tangentially) the distance between them would be infinitely small, therefore the strength of the field would be infinite in that very same spot. Due to the strength of a field being a form of energy and due to the fundamental laws of physics it is impossible that our drawn lines intersect (or touch) as this would be a spot in our universe with infinite energy - which is, sadly, not possible.Have a great day.