1.
permanent magnet
A magnet that retains its magnetism without an external electric current. Made from materials such as ferrite or neodymium, used in motors, speakers, sensors, and many everyday devices.
冷蔵庫のドアには永久磁石が使われている。
Permanent magnets are used in refrigerator doors.
ネオジム永久磁石は非常に強力だ。
Neodymium permanent magnets are extremely powerful.
電気モーターには永久磁石が組み込まれており、効率よく回転エネルギーを生み出す。
Permanent magnets are built into electric motors to efficiently generate rotational energy.
A compound of 永久 (permanent, eternal) and 磁石 (magnet). Contrasts with 電磁石 (electromagnet), which requires electric current to generate a magnetic field.
Japan is a major producer of high-performance permanent magnets, particularly neodymium magnets, which are essential components in electric vehicles, wind turbines, and electronics.
COMMON COLLOCATIONS:
- 永久磁石モーター: permanent magnet motor
- 永久磁石の磁力: magnetic force of a permanent magnet
- 永久磁石を使用する: to use a permanent magnet
- 高性能永久磁石: high-performance permanent magnet
SIMILAR WORDS:
- 磁石: magnet — the general term
- 電磁石: electromagnet — a magnet powered by electric current
- 磁力: magnetic force — the force produced by a magnet