what are magnets used for?
write a short note on care of magnets?
give one property of a permanent magnet?
Answers
Answer:
MAGNETS ARE USED TO EXTRACT MAGNETIC IMPURITIES FROM OTHER STUFF
U SHOULD NOT DROP A MAGNET
PERMANENT MAGNETS ALWAYS RETAIN THEIR PROPERTIES
Explanation:
what are magnets used for ?
Magnets can be used for attracting ferromagnetic materials. Magnetism and electricity are very closely related, and the science behind it, is used very much in technology. Magnets attract or repel other magnets, but are also used to store memory in a computers hard drive and to turn electricity into motion.
The most common used magnet known for daily use is probably the fridge and the board magnet. It is easy to see and use them, and are called permanent magnets. Many may have used them as toys or in school, but magnets are surprisingly more used than most people think.
Magnets can be affected by electricity, which can make them extremely useful in electronic devices and machines, so I know I was surprised when I realized, how many magnets there was in the home, and how important they are.
Magnets are also used to power speakers in stereos, headphones, and televisions. Furthermore, they are used in electric motors to set the electricity into motion, and there are usually a lot of these small electric motors to find in a house.
write a short note on care of magnets?
Storing your magnets in the correct fashion can strongly aid in the length of their lifespan. To get the most out of your magnets:
A keeper is a small piece of iron that is generally added temporarily between the north and south poles of a magnet. It prevents the magnet from demagnetising by redirecting its magnetic field.
Keep magnets in pairs to avoid both north and south sides from touching. Both poles of the same alignment should never be allowed to touch, as this will cause the magnetic fields to repel and cause the magnets to weaken over time.
Corrosion easily occurs to magnets that are stored in a damp environment. Corrosion will affect the strength of the magnets, especially if they rust, which causes an air gap. This will produce an insecure bond for ferromagnetic materials. Also, if magnets get wet, it can cause the laminate to bubble. If a magnet must be used in wet environments, make sure you’re using a magnet designed for water, and that the magnet is dried and cleaned regularly.
give one property of a permanent magnet?
The properties of magnets: magnets are magnetic and can attract iron objects.
Magnets have magnetic poles, and each magnet has two magnetic poles, N pole and S pole, which exist in pairs.
Temporary magnets and permanent magnets: When ferromagnetic materials are magnetized, they are easy to lose their magnetic properties and are called temporary magnets (for example iron); when ferromagnetic materials are magnetized, they are not easy to lose magnetism The nature of it is called a permanent magnet (for example steel).
When two magnets are close to each other, the same magnetic poles will repel each other and push away, and different magnetic poles will attract and stick to each other. So: the same poles repel each other and the different poles attract.
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