Magnetic Field

 A solenoid is a coil of electric wire wrapped in a propeller, often around a metal core, used to create a magnetic field when an electrical current crosses it

Magnetic field 

Operating

- Magnetic Field Creation: When electrical current passes through the coil, it generates a magnetic field inside and around the solenoid.

- Electromagnetic Effect: This magnetic field can attract or repel ferromagnetic objects (such as a mobile metal core) located near or inside the solenoid.

Applications

1. Electromagnets: Used in various devices to generate a controlled magnetic field.

2. Electromagnetic Valves: Used in plumbing and refrigeration systems to control the flow of fluids.

3. Relays and contacts: used to open or close electrical circuits.

4. Linear Actors: Converting electrical energy into linear motion.

Coil: A winding of conductor wire.

- Core: Often made of mild iron to increase the intensity of the magnetic field.

Solenoid is a fundamental element in many electromechanical devices thanks to its ability to convert electrical energy into mechanical energy via a magnetic