ELECTROMAGNET - Định nghĩa trong Từ điển tiếng Anh
electromagnet (noun)
/ɪˈlektrəʊmæɡnət/
Giải nghĩa:
A type of magnet in which the magnetic field is produced by an electric current.
Ví dụ:
The scrapyard uses a large electromagnet to move scrap metal.
electromagnet (noun)
/ɪˈlektrəʊmæɡnət/
Giải nghĩa:
A device made of a coil of wire wrapped around an iron core which becomes magnetized when an electric current flows through the wire.
Ví dụ:
In the demonstration, an electromagnet was used to pick up a pile of paperclips.
Cách sử dụng
An electromagnet is a type of magnet that is created by passing electricity through a wire coil. It can be used in many different places, such as in motors, speakers, and MRI machines. Electromagnets are useful because they can be turned on and off easily by controlling the flow of electricity, making them versatile and efficient. They are commonly used in everyday items like doorbells and some types of locks.
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