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प्रश्न
State four properties of magnetic field lines.
List two important properties of magnetic field lines.
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उत्तर
- They are closed and continuous curves.
- They are directed from the north pole towards the south pole outside the magnet.
- The tangent at any point on a field line gives the direction of the magnetic field at that point.
- Two magnetic lines never intersect each other.
Notes
Students should refer to the answer according to their questions.
संबंधित प्रश्न
Draw a diagram to show the magnetic field lines around a bar magnet.
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 magnetic field inside a long straight solenoid carrying current ______.
Explain the following :
When two pins are hung by their heads from the same pole of a magnet, their pointed ends moves apart.
State briefly the molecular theory of magnetism.
Complete the following diagram of magnets to show the lines of force.
A magnetic needle is kept in a non-uniform magnetic field. It experiences ______.
Define magnetic field lines of force.
