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प्रश्न
The magnetic field lines:
(a) intersect at right angles to one another
(b) interest at an angle 45° to each another
(c) do not cross one another
(d) cross at an angle of 60° to one anotherv
उत्तर
do not cross one another
The magnetic field lines do not cross one another because the resultant force at any point on the north pole can only be in one direction. This is impossible if the lines intersect.
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संबंधित प्रश्न
What are the two ways in which you can trace the magnetic field pattern of a bar magnet?
Draw a diagram to show the magnetic field lines around a bar magnet.
A magnetic field exerts no force on:
an electrical charge moving perpendicular to its direction
an unmagnetised iron bar
a stationary electric charge
a magnet
How will you test whether a given rod is made of iron or copper?
[Hint : Iron rod gets magnetised when placed near a bar magnet by magnetic induction, while copper rod does not get magnetised]
Figure. shows a bar magnet placed on the table top with its north pole pointing towards south. The arrow shows the north-south direction. There are no other magnets or magnetic materials nearby.
Insert two magnetic field lines on either side of the magnet using arrow head to show the direction of each field line.
Define the agonic line.
How do you account for the following fact?
Soft iron keepers help to prevent the magnets from losing their magnetic properties.
Repulsion is a surer test of magnetic condition of a body than attraction. Explain.
Draw diagram showing the arrangement of the lines of force for a piece of soft iron laid in line with the magnetic field.
Assertion (A): Magnetic field lines never intersect each other.
Reason (R): If they intersect, then at the point of intersection, the compass needle would point towards two directions, which is not possible.
