Question

What are an electromagnet? Give applications of electromagnets.

No spam
Answer in 80-90 words​

Answer 1

Explanation:

Electromagnets are widely used as components of other electrical devices, such as motors, generators, electromechanical solenoids, relays, loudspeakers, hard disks, MRI machines, scientific instruments, and magnetic separation equipment ....

The main advantage of an electromagnet over a permanent magnet is that the magnetic field can be quickly changed by controlling the amount of electric current in the winding. However, unlike a permanent magnet that needs no power, an electromagnet requires a continuous supply of current to maintain the magnetic field.

Electromagnets are widely used as components of other electrical devices, such as motors, generators electromechanical solenoids, relays, loudspeakers, hard disks, MRI machines, scientific instruments, and magnetic separation equipment. Electromagnets are also employed in industry for picking up and moving heavy iron objects such as scrap iron and steel.

A portative electromagnet is one designed to just hold material in place; an example is a lifting magnet. A tractive electromagnet applies a force and moves something.[8]

Electromagnets are very widely used in electric and electromechanical devices, including:

drop some thx

it's Isha

Answer 2

Answer:

When an electric current is passed through a coil of wire, it behaves like a permanent magnet. One end of the coil acts as a north pole and the other end acts as a south pole. When the current is stored, the magnetic properties of the coil also vanish. Such a magnet is called electromagnet.

Electromagnets find wide applications. Two important applications are:-

• They are used in cranes to lift heavy loads of scrap iron or iron sheets.
• They are used in electric bells, telegraphs, telephones, speakers, etc.
• They are used to separate magnetic material from the junk.
• They are also used to make many toys.

hope it helps you.