To make a magnet repel a metal, one must first understand the properties of a magnet. A magnet has two poles, a north pole and a south pole. When magnets are placed near each other, opposite poles attract and like poles repel one another. When a metal enters a magnetic field, all of...
To make a magnet repel a metal, one must first understand the properties of a magnet. A magnet has two poles, a north pole and a south pole. When magnets are placed near each other, opposite poles attract and like poles repel one another. When a metal enters a magnetic field, all of...
Yeager, Kaitlyn. How To Magnetize An Iron Rod last modified March 24, 2022. https://www.sciencing.com/magnetize-iron-rod-5008167/ Recommended misp.666/Shutterstock As a kid, it's so much fun to rub a balloon on your head to make your hair stand up. The samestatic electricity can build...
In a strong magnetic field, some walls disappear entirely. The resulting magnet's strength depends on the amount of force used to move the domains. Its permanence, or retentivity, depends on how difficult it was to encourage the domains to align. Materials that are hard to magnetize generally...
By the 12th century, people had discovered that they could use lodestone to magnetize pieces of iron, creating a compass. Repeatedly rubbing lodestone along an iron needle in one direction magnetized the needle. It would then align itself in a north-south direction when suspended. Eventually, sci...
Did you know that you can take away the sticking power of a permanent magnet by dropping it? The impact can actually cause the atoms to fall out of alignment. You can magnetize them again by rubbing a magnet on it. Putting the 'Electro' in 'Electromagnet' Since you need an electrical...
The tool is as universally important as the hammer and the wheel. Here’s how to pick (and use) the right one.
The electricity magnetizes the electromagnet. Increasing current boosts the electromagnet's magnetic force, and decreasing current lowers the magnetism. When the current jumps to unsafe levels, the electromagnet is strong enough to pull down a metal lever connected to the switch linkage. The entire ...
You magnetize the first one (to store a 1), leave the next five demagnetized (to store five zeros), and magnetize the last one (to store a 1). How a hard drive worksIn your computer's hard drive, there aren't really any iron nails. There's just a large shiny, circular "plate"...
If you're wondering how to reset a breaker, you've come to the right place. Not only will we explain how to reset a breaker in this article, but we'll also discuss how to deal with circuit breaker trips and an overloaded circuit. Better yet, we'll make sure you take proper safety...