Question
Question: Artificial magnets are made in different shapes such as __________, ________ and _____....
Artificial magnets are made in different shapes such as __________, ________ and _____.
Solution
Hint: Artificial magnets are those that are prepared artificially. Most of the electromagnets come under this category. These magnets are stronger when compared to natural magnets. They are also available in different shapes.
Complete answer:
A magnet is a substance that attracts iron and aligns itself like the north pole of the magnet points towards the Earth’s north pole. They are two types of magnets: natural and artificial magnets.
Natural magnets are those that occur in nature. They are permanent and will never lose their magnetic power. They are found in different places and in different shapes.
Artificial magnets are those made by people and they are extra strong. It has two types of magnets: temporary and permanent magnets. Temporary are those which are not always magnetic. But, permanent magnets have the magnetic power that can never be faded. There are numerous applications of artificial magnets and they come in different shapes and sizes. Most common shapes are bar magnets, horse-shoe magnets and cylindrical magnets.
Bar magnets are rectangular in shape and made up of iron or any ferromagnetic material. It has two poles: north and south poles and has permanent magnetic properties.
Horse-shoe magnets are made in the shape of horse-shoe with any ferromagnetic substance. It has two magnetic poles close together at the end of its legs.
Cylindrical magnets are also known as rod magnets have thickness higher than their diameter. They produce very high levels of magnetism but have small pole area surfaces.
Therefore, the correct answer is, Artificial magnets are made in different shapes such as bar magnets, horse-shoe magnets and cylindrical magnets.
Note: Like poles repel each other and unlike poles attract each other. We can never isolate the north or south pole of a magnet. Even if the magnet is broken into halves, we may get two similar magnets with weaker properties.