Question

what is the use of solenoid​

Answer 1

Answer:

Solenoids and electromagnets technically are not the same thing, but people talk as if they are. A solenoid is just a coil of wire, but when you run a current through it, you create an electromagnet. Since this is by far the most useful application of a coil of wire, it's not surprising that when you say the word 'solenoid,' people tend to assume you mean electromagnet. Electromagnets are particularly useful because, unlike regular magnets, they can be switched on and off, and strengthened by increasing the current flowing through them.

Answer 2

Hope the attachment will help u