Question

1/20 a type of magnet in which the magnetic field is produced by an electric current. strong magnet weak magnet electromagnet

Explanation:

The question is about identifying a type of magnet where the magnetic field is produced by an electric current. An electromagnet is defined as a magnet that generates a magnetic field due to an electric current. Strong and weak magnets are not defined by the source of the magnetic field being an electric current, but rather by their magnetic strength, which is not relevant to the given definition.

Answer:

C. Electromagnet