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प्रश्न
What do you meant by the term pole of a magnet? Magnetically speaking, what is the difference between a piece of brass, a piece of soft iron, and a piece of lode- stone?
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उत्तर
Pole of a magnet: Each end of a bar magnet is called its pole. The point situated slightly inside a bar magnet, where most of its magnetic power is concentrated, is called magnetic pole or pole of a magnet.
Brass is not a magnetic substance and it is not affected by a magnetic field. It does not stick to a magnet.
Soft iron is a ferromagnetic substance and gets strongly attracted to a magnet. Soft iron can not attract other magnetic substances unless gets magnetized.
Lode stone is a naturally magnetized piece of mineral magnetite. It can attract other magnetic substance.
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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.
Fill in the following blank with suitable words:
Magnetic field lines leave the .......... pole of a bar magnet and enter at its .......... pole.
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.
Explain why, two magnetic field lines of not intersect each other.
Fill in the following blank with suitable words:
The lines of ........... round a straight current-carrying conductor are in the shape of ...........
Explain the method of plotting the magnetic field lines by using a small compass needle.
In following figure, draw at least two magnetic field lines between the two magnets.
(b) 
State briefly the modern views on magnetism.
What are the properties of a magnet?
The magnetic field lines are stronger near the ______ and it diminishes as you go away from it.
