DictionarysolenoidMagnetic coil
noun

solenoid

SAH-luh-noyd/ˈsɑːlənɔɪd/

A wire coil that produces a magnetic field when electric current flows through it.

Electric current flowing through the solenoid creates a magnetic field.

A clear helical coil of copper wire connects to a battery, simple magnetic field lines emerge along its axis; correct closed electrical connection.
Etymology

The pieces mean “pipe-shaped”: the name describes the coil’s tubular form rather than its magnetic effect. The deeper origin of the Greek word for “pipe” is uncertain.

In context

Zack Miller2:59
power through to the coil or solenoid this is the coil and you can kind of see on the bottom of the solenoid
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More examples

  • The solenoid pulls an iron rod inward when the switch closes.
  • These solenoids have hundreds of tightly wound turns of wire.
  • Reversing the current reverses the magnetic poles of the solenoid.

Forms

solenoid · solenoids

Similar words

electromagnet
An electrically powered magnet, often built around an iron core.
coil
Any wound length of wire, not necessarily used to produce magnetism.