bar magnet
noun [ C ] uk/ˈbɑː ˌmæɡ.nət/ us/ˈbɑːr ˌmæɡ.nət/
磁棒;条形磁铁
a magnet in the shape of a bar whose magnetic force is strongest at its poles (= ends), one end attracting iron and steel objects and the other end pushing them away
If you hang a bar magnet from a piece of string, its north pole will swing round to point to Earth's North Pole. 如果把一块条形磁铁挂在一根绳子上，它的北极就会旋转指向地球的北极。
- More examples
- His experiments can be repeated easily with small bar magnets.
- The magnetic field around a solenoid is similar to that around a bar magnet.
- A compass needle is like a bar magnet. When it is free to rotate, it turns to point north-south.
- If the solar wind did not exist, the earth's magnetic field would be like that of a bar magnet in space.