Solenoid (noun)

A type of coil that generates a magnetic field when an electric current is passed through it.

Origin:

Derived from the greek 'solēn' meaning pipe or hollow reed, referring to a type of coil that generates a magnetic field when an electric current is passed through it.

Examples:

1. The solenoid is used in a wide range of applications, including electric motors, generators, and actuators.
2. The solenoid is made of a coil of wire, typically around a magnetic core, that creates a magnetic field when an electric current is passed through it.
3. The solenoid is a fundamental component in the study of electromagnetism, and is used in many physics experiments to demonstrate the interaction between magnetic fields and electrical currents.
4. The solenoid is also used in sensors and switches, as the magnetic field can be used to control the position of a movable core or trigger a circuit.
5. The solenoid is a simple and efficient device, capable of producing high magnetic fields with low power consumption and compact size.