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2007-04-11 19:31:38 · 18 answers · asked by Anonymous in Science & Mathematics Physics

18 answers

A magnetized bar has its power concentrated at two ends, its poles; they are known as its north (N) and south (S) poles, because if the bar is hung by its middle from a string, its N end tends to point northwards and its S end southwards. The N end will repel the N end of another magnet, S will repel S, but N and S attract each other. The region where this is observed is loosely called a magnetic field; a more specific look at the concept of "field" is provided in a later section.


Either pole can also attract iron objects such as pins and paper clips. That is because under the influence of a nearby magnet, each pin or paper clip becomes itself a temporary magnet, with its poles arranged in a way appropriate to magnetic attraction

2007-04-11 19:40:05 · answer #1 · answered by Ravinder C 2 · 0 0

Magnets Repel

2016-11-12 21:44:52 · answer #2 · answered by Anonymous · 0 0

People not familiar with magnetism often view it as a somewhat mysterious property of specially treated iron or steel.
A magnetized bar has its power concentrated at two ends, its poles; they are known as its north (N) and south (S) poles, because if the bar is hung by its middle from a string, its N end tends to point northwards and its S end southwards. The N end will repel the N end of another magnet, S will repel S, but N and S attract each other. The region where this is observed is loosely called a magnetic field; a more specific look at the concept of "field" is provided in a later section.


Either pole can also attract iron objects such as pins and paper clips. That is because under the influence of a nearby magnet, each pin or paper clip becomes itself a temporary magnet, with its poles arranged in a way appropriate to magnetic attraction.

But this property of iron is a very special type
of magnetism, almost an accident of nature!



North-south pole designation and the Earth's magnetic field
See also: Earth's magnetic field, North Pole, South Pole, and Magnetic North Pole
A standard naming system for the poles of magnets is important. Historically, the terms north and south reflect awareness of the relationship between magnets and the earth's magnetic field.

Magnetic North and Magnetic Declination
Main article: Magnetic declination. See also: Earth's magnetic field
The direction in which a compass needle points is known as magnetic north. In general, this is not exactly the direction of the North Magnetic Pole (or of any other consistent location). Instead, the compass aligns itself to the local geomagnetic field, which varies in a complex manner over the Earth's surface, as well as over time. The angular difference between magnetic north and true north (defined in reference to the Geographic North Pole), at any particular location on the Earth's surface, is called the magnetic declination. Most map coordinate systems are based on true north, and magnetic declination is often shown on map legends so that the direction of true north can be determined from north as indicated by a compass.



To avoid the confusion between geographic and magnetic north and south poles, the terms positive and negative are sometimes used for the poles of a magnet. The positive pole is that which seeks geographical north.

2007-04-11 22:07:14 · answer #3 · answered by sagarukin 4 · 0 0

This Site Might Help You.

RE:
Why does a magnet repel other magnet?

2015-08-06 05:12:35 · answer #4 · answered by Anonymous · 0 0

Like poles of magnet repel each other & opposite poles attract each other this is due to their magnetic mements i.e. North pole is treated as domains of +ve magnetic mement & south pole is treated as domains of -ve magnetic mements & as you know very well like charges repel each other,so north & north pole repel each other while north & south pole attract each other.
I hope now it is clear to you.

2007-04-11 19:46:32 · answer #5 · answered by Jerry 1 · 0 0

If the same charges of a magnet go against each other, they repel each other.

2007-04-11 19:35:03 · answer #6 · answered by spsaheli 3 · 0 0

like charges repel
in a magnet, some atoms have +ve charge, some have -ve
atoms wish to become neutral
when a +ve charged magnet is brought near another +ve charged one, they repel, bcos the 2 atoms have no affinity ie, neither can make the other a neutral atom, since none have excess -ve charge
when +ve and -ve are near each other, they attract so that they can exchange charges and bcome neutral

[simplified form: its actually a little more complicated]

2007-04-11 20:14:48 · answer #7 · answered by sushobhan 6 · 0 0

All magnets have definite polarity that is south pole and north pole and if like poles are brought near each other than theyrepel and if unlike poles are brought near each other than they attract , its one of the property of magnets

2007-04-11 19:40:24 · answer #8 · answered by Kena P 2 · 0 0

In some ways, you can think of a norh pole of a magnet as sending out waves--lets say waves moving clockwise and the south pole as having waves moving counter-clockwise. Let's say you're walking down the street and someone is walking towards you. If you both move towards the same spot on the sidewalk, you two just continue to move against one another--neither of you can advance you might want to go forward but the movement of the person trying to go in the same spot as you just propels backwards. If in the same scenario, you two wanted to occupy opposite sides of the same sidewalk square, you would move unhindered and flow perfectly.

2007-04-11 19:58:53 · answer #9 · answered by Anonymous · 1 0

every magnet is made of two ends or two poles ie south pole and north pole. when two magnets facing same poles(N-N,S-S) are brought closer they repell each other, but when facing dissimilar poles(N-S,S-N) will attract each other.This is magnets intrinsic property.

2007-04-11 19:40:26 · answer #10 · answered by Anonymous · 0 0

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