What is an artificial magnet? Why do we need artificial magnets?

What do you understand by poles of a magnet?

Short/Brief Note

The magnetic forces appear to be concentrated at the near ends of the magnet. These points are called the magnetic poles.

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Chapter 8: Electricity and Magnetism - Magnestism [Page 320]

Chapter 8 Electricity and Magnetism
Magnestism | Q 3 | Page 320

Draw diagrams of the artificial magnets of four different shapes?

Select the correct option:

The place around a magnet where its influence can be detected is called:

There are two knitting needles. One of them is magnetized. How will you find out which one is magnetized, if no other magnet is available?

Bar magnets are often stored in pairs as shown in the figure. E and F being pieces of metal.

Why are E and F placed in contact with the poles of the magnets as shown in the diagram?

Since every iron atom is a tiny magnet, why are not all iron bar magnets?

Define the term Magnetic axis

Give scientific reason:

Not attraction but repulsion is a sure test of magnetism.

Why it is not advisable to slide a magnet on an iron bar back and forth during magnetising it?

What are the factors that determine the strength of the magnet?

Define the terms magnet and magnetism.