Move parallel, move a certain distance, and add a force to separate.

: Strong magnet refers to neodymium magnet. Compared with ferrite magnets, Al-Ni-Co and Sm-Co, its magnetic properties greatly exceed those of other magnets. Neodymium magnet can absorb 640 times its own weight, so NdFeB is often called a powerful magnet by laymen.

The function of powerful magnet:

1 refers to the north and south.

Attract light and small objects.

Electromagnets can be used as electromagnetic relays.

4. Engine

5 generator?

6 electroacoustic

7 magnetotherapy

8 magnetic levitation

9 nuclear magnetic resonance