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प्रश्न
What are the properties of a magnet?
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उत्तर
Following are the properties of the magnet:
(i) Like poles of a magnet repel each other while unlike poles attract.
(ii) Magnet have an attractive property means it attract the magnetic material towards it.
(iii) Magnet have the directive property means when it is held freely, it always points towards north-south direction.
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संबंधित प्रश्न
State whether the following statement is true of false:
The axis of earth's imaginary magnet and the geographical axis coincide with each other.
The strength of the magnetic field between the poles of an electromagnet would be unchanged if:
A thick wire is hanging form a wooden table. An anticlockwise magnetic field is to be produced around the wire by passing current through this wire by using a battery. Which terminal of the battery should be connected to the:
(a) top end of wire?
(b) bottom end of wire?
Give reason for your choice.
What is a lodestone?
Explain the following :
When two pins are hung by their heads from the same pole of a magnet, their pointed ends moves apart.
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.
What is the magnitude of the magnetic field at each neutral point? Give a reason for your answer.
Complete the following sentence :
If the field lines in a magnetic field are parallel and equidistant, the magnetic field is __________ .
Write a note on the 'magnetic field'.
If the key in the arrangement is taken out (the circuit is made open) and magnetic field lines are drawn over the horizontal plane ABCD, the lines are
