Magnetic Effect of Electric current
Magnet- an introduction
You are familiar with the fact that magnets have a variety of applications in our daily lives. Magnets are used in refrigerator doors, in junkyards, as pin holders, in screwdrivers, etc.
A question that can arise in our minds is how magnet was discovered. In this section, we will tell you an interesting story about the accidental discovery of magnet.
Around 2,000 B.C., a shepherd named Magnes lived in an area named Magnesia (situated in Northern Greece). He used to take his herd of sheep to graze in the nearby mountains. He used to control his herd with a long stick that had an iron tip. Also, a few iron nails were fixed to his shoes.
It is said that one day while he was herding his sheep, he observed that his shoes and the tip of the stick were stuck to a large black-coloured rock. It was very difficult for him to move on that black rock. Later, this rock and similar rocks were named magnetite (after either his name or that of the place). Magnetite has the property to attract objects made up of iron. The substances that can attract iron are now known as magnets.
Do You K...
To view the complete topic, please