What does a higher degree of closeness of magnetic field lines indicate?
Stronger magnetic field at that region
Magnetic field lines are a way of visualising the direction and strength of a magnetic field around a magnet or a current-carrying conductor. The density of the lines, that is, how many lines pass through a unit area drawn perpendicular to them, represents the magnitude of the magnetic field at that point.
Where the lines are packed closely together, the field is intense; where they spread apart, the field is weak. This is why the region just outside the poles of a bar magnet, where the lines crowd in, corresponds to the strongest magnetic field, while the region far from the magnet has widely spaced lines and a weak field.
Hence, a higher degree of closeness of magnetic field lines indicates a stronger magnetic field at that region.
Magnetic field lines never cross each other, because at a point of crossing the field would have two directions at once, which is not possible. Closeness of lines does not signal weaker field; the opposite is true. And the presence of an electric field is shown by electric field lines (linked to charges), not magnetic ones.
Similar Questions
The direction of the magnetic field at the centre of a current-carrying circular loop is determined by which of the following?
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Important Questions from Magnetism
The magnet used to lift and transport heavy loads like big metals, steel girders and scrap iron objects for loading and unloading purposes is known as____.
A suspended bar magnet is rotated. It will come to rest in the north-south direction. This shows that the earth has its own_______.
When a bar magnet is cut into two equal parts, then:
Consider the following statements about a magnetic field.
(i) A magnetic field has both magnitude and direction.
(ii) The direction of magnetic field lines inside a bar magnet is from its south pole to its north pole.
(iii) Magnetic field lines are closed curves.
Select the correct option.
What will happen if a collection of positive and negative charges are passed at a high speed through a magnetic field which is perpendicular to the direction of motion of the charges? (Assume that both kind of charges are NOT going to recombine)
