Advertisements
Advertisements
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?
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
The magnetic field lines produced by a bar magnet:
(a) originate from the south pole and end at its north pole
(b) originate from the north pole and end at its east pole
(c) originate from the north pole and end at its south pole
(d) originate from the south pole and end at its west pole
What is a natural magnet? State two limitations of a natural magnet.
The intensity of a magnetic field is indicated by the lines of ______.
Which substances are used for making electromagnets?
What are the properties of a magnet?
The magnetic field lines always begin from ____________.
The magnetic field lines are stronger near the ______ and it diminishes as you go away from it.
Define magnetic field lines of force.
A wire 10 cm long carrying a current of 1.5 A is held in a uniform magneÑic field in which B = 10-3 T. Calculate the force on the wire if it is held perpendicular to the lines of the magnetic field.
