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Maximum iron fillings are attracted to the poles of a magnet.

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Important Questions on Fun With Magnets

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Science>Physics>Fun With Magnets>Poles of Magnet

Write three main characteristics of a magnet.

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Science>Physics>Fun With Magnets>Poles of Magnet
A square loop of side 2a, and carrying current I is kept in XZ plane with its centre at origin. A long wire carrying the same current I is placed parallel to the z-axis and passing through the point (0, b, 0),(b>> a). The magnitude of the torque on the loop about z-axis is given by.
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Science>Physics>Fun With Magnets>Poles of Magnet
The power of a magnet is minimum at its centre.
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Science>Physics>Fun With Magnets>Poles of Magnet
A magnet has two poles.
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Science>Physics>Fun With Magnets>Poles of Magnet
Poles of a magnet always exist in pairs.
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Science>Physics>Fun With Magnets>Poles of Magnet
A magnet has south and north poles.
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Science>Physics>Fun With Magnets>Poles of Magnet
A magnet may have more than two poles.
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Science>Physics>Fun With Magnets>Poles of Magnet

How can you show that the magnetic strength of a magnet is concentrated at the poles?

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Science>Physics>Fun With Magnets>Poles of Magnet
We can make magnet with only one pole.
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Science>Physics>Fun With Magnets>Poles of Magnet
All magnets have only one pole.
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Science>Physics>Fun With Magnets>Poles of Magnet
At which place is the power of a bar magnet strongest?
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Science>Physics>Fun With Magnets>Poles of Magnet
At which point on this diagram (labelled A to D) is the magnetic strength maximum?

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Science>Physics>Fun With Magnets>Poles of Magnet
A device based on the directive property of the magnet. (Choose from : Magnetic compass or Sun-dial).
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Science>Physics>Fun With Magnets>Poles of Magnet
If there are no markings on a bar magnet how will you find out at which ends the north pole and the south pole are located?
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Science>Physics>Fun With Magnets>Poles of Magnet
On breaking, the two poles of a magnet get separated.
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Science>Physics>Fun With Magnets>Poles of Magnet
If the magnet is rolled over iron filings, the filings will get mostly attracted
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Science>Physics>Fun With Magnets>Poles of Magnet

Fill in the blanks by choosing from the brackets.

Magnetism is concentrated at the _____(centre/ poles) of a magnet.

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Science>Physics>Fun With Magnets>Poles of Magnet

Fill in the blanks by choosing from the brackets.

The _____ (magnetic fields / magnetic poles) always exist in pairs.

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Science>Physics>Fun With Magnets>Poles of Magnet

(a) Name two magnetic poles which attract each other.

(b) Name two magnetic poles which repel each other.

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Science>Physics>Fun With Magnets>Poles of Magnet
Can a magnetic north pole exist without a magnetic south pole?