What is the use of magnets?
Magnets are proving their worth every day with their incredible capabilities, making even the most difficult tasks easier. Due to the various uses of magnets in daily life, we can accomplish heavy lifting that humans cannot do every day. Magnets play an important role in a variety of devices, ranging from small toys to heavy equipment weighing up to 100 tons, used to pick up heavy metals.
Various applications and uses of magnets
We may use computers in our daily lives, but we never thought there would be magnets in them. Magnetic elements on the hard drive help represent computer data, which is then “read” by the computer to extract information.
Magnets are used inside televisions, stereo speakers and radios. Small coils and magnets inside the speaker convert electrical signals into sound vibrations.
Magnets are used in generators to convert mechanical energy into electrical energy. In contrast, other types of motors use magnets to convert electrical energy into mechanical energy.
An electromagnet helps the crane move large pieces of metal.
Magnets are used in filters to separate metal ore from crushed rock.
It is also used in the food processing industry to separate small metal pieces from grains and the like.
Magnets are used in MRI machines to create images of bone structures, organs and tissues. Even magnets are used to treat cancer.
At home, when you stick a piece of paper on the refrigerator to remember something, you use magnets. A magnetic corkscrew attached to the refrigerator can be handy.
We often use pocket compasses to find our way when hiking. The pocket compass uses a magnetic needle to point north.
The dark strips on the back of debit and credit cards are magnetic and are used to store data, such as computer hard drives.
Magnets can help collect all the nails that are scattered on the ground after repair work.
These are some of the different uses of magnets. Learn more about magnets and other related concepts with interactive and engaging video lessons by downloading the BYJU ‘s-Learning App.
Frequently Asked Questions – Frequently Asked Questions
Q1
What is a magnet?
A magnet is an object with atoms arranged in an orderly manner, so the object behaves magnetic. It attracts other iron sheets or positions itself in an external magnetic field.
Q2
What is an electromagnet?
An electromagnet consists of a coil wound around a metal core made of iron. When this material is exposed to an electric current, it creates a magnetic field that causes the material to behave like a magnet. The strength of the magnetic field can be controlled by controlling the current.
Q3
What are magnetic field lines?
The field line or force line shows the strength of the magnet and the direction of the magnet force. It was discovered by Michael Faraday for visualizing magnetic fields.
Q4
How many types of magnets are there?
There are basically three types of magnets: permanent magnets, temporary magnets, and electromagnets.
Q5
Who discovered electromagnetism?
Hans Christian Oersted discovered electromagnetism