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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
Which of the following statements is incorrect regarding magnetic field lines?
(a) The direction of magnetic field at a point is taken to be the direction in which the north pole a magnetic compass needle points.
(b) Magnetic field lines are closed curves.
(c) If magnetic field lines are parallel and equidistant, they represent zero field strength.
(d) Relative strength of magnetic field is shown by the degree of closeness of the field lines.
The figure given below shows the magnetic field between two magnets:
Copy the diagram and label theother poles of the magnets.
Which is the weaker magnet?
An electron beam enters a magnetic field at right angles to it as shown in the Figure.
The direction of force acting on the electron beam will be:
to the left
to the right
into the page
out of the page
Explain the mechanism of attraction of iron nails by a magnet when brought near them.
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.
Indicate by crosses, the likely positions of the neutral points.
Define the Isogonic line.
The relative strength of the magnetic field at a point in the space surrounding the magnet is shown by the ____________.
Magnetic lines of force never ______ each other.
The magnetic field lines are stronger near the ______ and it diminishes as you go away from it.
