Applications Of Magnetism

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DISCUSSION: APPLICATIONS OF MAGNETISM

Like most of my classmates, before attending this class I had no knowledge whatsoever

pertaining to magnets. My knowledge was no different to that of a 7-year-old who only

knows that if you put a coin or metal paper clip closer to it, the magnet will pull the object

closer and attract the metal. This class was an eye-opener as I learnt that mankind has been

aware of magnets for time immemorial with the earliest records dating back to before the

time of Christ (Openstax, n.d). Another intriguing fact I learnt was that a rock referred to as

magnetite has unique properties that can attract the metal iron and can position itself in a

north-south direction if allowed to rotate freely. It was also interesting to learn that if you cut

a magnet in half, the halves would still possess the north and south poles which means that

these two poles cannot be isolated by cutting a magnet in half according to the All About

Circuits textbook. Through all the material I went through, what I found particularly

intriguing was that there is a relationship between magnets and electricity referred to as

electromagnetism. What are the odds? Yes, my jaw dropped a bit as well when I discovered

this.

One concept that was unfamiliar to me prior to this lesson was that the poles of a magnet

generate an invisible field called the magnetic field. I would explain this notion to someone

who is a novice to the world of physical sciences that this field can be mapped by putting a

magnet on a flat surface e.g., a piece of paper then sprinkle iron fillings on top of the magnet.

The iron fillings will map the shape of the magnetic field by positioning themselves with the

field (All About Circuits, n.d).

There is a multitude of uses electromagnets in today’s society, and the uses continue to be

discovered as science is modernized. For example, electromagnets can be used in medical

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1 DISCUSSION: APPLICATIONS OF MAGNETISM 2 Like most of my classmates, before attending this class I had no knowledge whatsoever pertaining to magnets. My knowledge was no different to that of a 7-year-old who only knows that if you put a coin or metal paper clip closer to it, the magnet will pull the object closer and attract the metal. This class was an eye-opener as I learnt that mankind has been aware of magnets for time immemorial with the earliest records dating back to before the time of Christ (Openstax, n.d). Another intriguing fact I learnt was that a rock referred to as magnetite has unique properties that can attract the metal iron and can position itself in a north-south direction if allowed to rotate freely. It was also interesting to learn that if you cut a magnet in half, the halves would still possess the north and south poles which means that these two poles cannot be isolated by cutting a magnet in half according to the All About Circuits textbook. Through all the material I went through, what I found particularly intriguing was that there is a relationship between magnets and electricity referred to as electromagnetism. What are the odds? Yes, my jaw dropped ...
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