Question

what is solenoid....

Answer 1

1.Solenoid is a length of wire/coiled wire used to create a magnetic field. 
2.It’s an electromagnet, a magnet where the magnetic field is created by an electrical current. 
3.A solenoid can also be used to refer to any object or system that can create mechanical energy out of electrical energy using the coil of wire dubbed a solenoid.

Answer 2

hey mate here is your answer

a solenoid is a cylindrical coil of wire acting as a magnet when carrying electric current.

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