Electromagnets are used in many pieces of equipment, including power generators, stereo speakers, and computer hard drives. Because they depend on an electrical current to create a magnetic field, they are referred to as “electromagnets.” Conventional magnets, also known as permanent magnets, do not depend on an electrical charge to generate a magnetic field, which is a glaring contrast to this.
History of Electromagnets
Electromagnets are artificial; permanent magnets are found naturally in the crust of the Earth. The invention dates back to 1820 when a Danish scientist by the name of Christian Orsted discovered that he could create a magnetic field by passing an electrical current through a coil of wire. William Sturgeon made one of the first electromagnets out of copper wire in just a few years, putting Orsted’s concept into practice.
Electromagnets Can Be Switched On and Off
Electromagnets can be switched on and off because they generate a magnetic field using an electrical current. The electromagnet creates a magnetic field when the electrical current is flowing. The electromagnet does not cause a magnetic field when it is not operating. Therefore, when magnetism is required for a particular reason, electromagnets can precisely create a magnetic field.
For instance, an electromagnetic field may be activated in heavy-lifting systems to raise a heavy load. A worker can turn off the electromagnet to release the cargo after lifting and shifting it to a new location. This is not feasible with permanent magnets continuously producing a magnetic field.
Why Use Electromagnets?
A magnet produced by electricity is known as an electromagnet. The electric current has a magnetic field. So, unlike permanent magnets, you can adjust the magnetism with an on/off switch. When a magnetic field is only required intermittently, this can be highly helpful in various applications.
How Do Electromagnets Work?
The wire provides the magnetism for the actual magic of electromagnets. The wire encircles the coil. The centre of this coil contains a magnetic substance. But a magnetic field is produced when a current flows through the loop of wire — enhancing the magnet’s strength.
There are benefits other than being able to control the magnetic field. In contrast to permanent magnets, electromagnets have magnetic fields that can be adjusted. You can alter the magnetic field’s strength. You can do this by regulating the amount of electric current flowing through it. The drawback is that an electromagnet needs electricity, unlike a permanent magnet does not have. The magnetic field cannot be sustained in the absence of current.
Sekao engineering has offered the highest-quality electromagnets for more than 24 years. Sekao Engineering has sold magnets, magnetic devices, and blacksmithing materials in Australia. They sell everything you need, from magnetic filters to cast steel anvils, from ferrite to samarium cobalt magnets.
Sekao does not have a minimum order quantity. But with their discount system, the more you buy, the less expensive they will be. They are aware of how crucial having high-quality electromagnets is to your project’s success.
Although it is simple equipment, you must have high-quality electromagnets. Additionally, you may find them at magnetics.net.au or in their Brisbane store. You don’t need to look further because they import the best products from around the world to Australia. Contact them for any of your electromagnet requirements!