sähkömagneetit
Sähkömagneetit, also known as electromagnets, are devices that generate a magnetic field using an electric current. They consist of a coil of wire, typically wrapped around a core made of a ferromagnetic material such as iron. When an electric current flows through the coil, it creates a magnetic field around it. The strength of the magnetic field can be increased by increasing the number of turns in the coil or by using a core material with high magnetic permeability.
Electromagnets are widely used in various applications, including electric motors, generators, transformers, and magnetic locks. They
The magnetic field generated by an electromagnet is proportional to the current flowing through the coil, as
Electromagnets have several advantages over permanent magnets, including the ability to be turned on and off,