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प्रश्न
Repulsion is a surer test of magnetic condition of a body than attraction. Explain.
उत्तर
Repulsion is the surest test of magnetism because the attraction can be caused between two unlike poles of the two magnets or between the magnet and magnetic substance such as iron, nickel etc. But repulsion is caused when two similar poles approach each other.
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संबंधित प्रश्न
Fill in the following blank with suitable words:
The earth's magnetic field is rather like that of a .......... magnet with its .......... pole in the northern hemisphere.
What is a magnetic field? How can the direction of magnetic field lines at a place be determined?
In following figure, draw at least two magnetic field lines between the two magnets.
(a) 
Draw magnetic field lines produced around a current-carrying straight conductor passing through cardboard. Name, state and apply the rule to mark the direction of these field lines.
Select the correct option:
The magnetic strength of a bar magnet is:
Draw diagram showing the arrangement of the lines of force for two magnets in line, with unlike poles facing one another.
State any two properties of a magnet.
What are the properties of a magnet?
State whether true or false. If false, correct the statement.
Magnetic field lines always repel each other and do not intersect.
"Magnetic field is a physical quantity that has both direction and magnitude." How can this statement be proved with the help of magnetic field lines of a bar magnet?
