electromagnet
🇺🇸
/ɪˈlektrəʊmæɡnət/
🇬🇧
/ɪˈlektrəʊmæɡnət/
A device that can attract metal when electricity is flowing through it and loses its power to attract when the electricity is turned off.
The scientist used an electromagnet to lift the heavy metal object.
科学者が電磁石を使って重い金属の物体を持ち上げた。