Definitions from the Web
Electromagnet
Description:
An electromagnet refers to a type of magnet that is created by passing an electric current through a coil of wire. The coil is usually wrapped around a magnetic core made of ferromagnetic material, such as iron or steel. This magnetic field generated by the electric current can be turned on or off by controlling the flow of electricity. Electromagnets are widely used in various applications that require precise control over the magnetic field.
Sample Sentences:
- The crane operator activated the electromagnet to lift heavy metal objects at the construction site.
- By adjusting the current flowing through the wire, the scientist altered the strength of the electromagnet.
- In the physics experiment, students observed the effect of varying the voltage on the magnetic force produced by the electromagnet.
- The doorbell mechanism consists of an electromagnet that causes the bell to ring when the circuit is closed.
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