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Solenoid

usgb/ˈsɑːlənɔɪd/Volume
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Magnetic DevicePlay
A solenoid is often used to control something by using magnetism generated by electric current. SlideTo start the engine, the car's solenoid engages the starter motor.
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ElectromagnetismPlay
Solenoids demonstrate electromagnetism by turning electrical power into a magnetic field. SlideWhen the button was pressed, the solenoid activated the lock.
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Technical ContextPlay
The term 'solenoid' is technical and most common in discussions related to physics and mechanics. SlideDuring the experiment, we measured the strength of the magnetic field produced by the solenoid.