Question:
what are magnetic feild lines
Answer:
Magnetic field lines are the pictorial representation of a magnetic field.
The tangent drawn at any point of a magnetic field line shows the direction of magnetic field at that point.
Field lines of a magnet starts from the north pole and reach to the south pole.Inside the magnet these lines are in the direction from south pole to north pole, so they form close loops.
Magnetic field lines never intersect each other, because if they do so, at the point of intersection there are two directions of magnetic field and it is not possible.
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