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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?
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
Explain the following :
Several soft iron pins can cling, one below the other, from the pole of a magnet.
State four properties of magnetic field lines.
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.
Insert two magnetic field lines on either side of the magnet using arrow head to show the direction of each field line.
Select the correct option:
A bar magnet is rubbed on a bar of steel along its length 20 times. The bar of steel gets magnetised due to the process of:
Select the correct option:
Nickel is a:
Draw diagram showing the arrangement of the lines of force for two magnets in line, with unlike poles facing one another.
A charge moving in a magnetic field, in a direction other than the direction of the magnetic field, experiences a force. It is called the ______ force.
When the conductor is perpendicular to the magnetic field, the force will be the ______, When it is parallel to the magnetic field, the force will be ______.
Define magnetic field lines of force.
