- Electromagnetic generators.
Transform mechacical energy into electricity. There are two types of generators, depending on the type of current that is produced:
· Dynamos: consists of a magnet and a rotary coil. The coil is located between the poles of the magnet. The coil have two semi-circular conductors, which form th conmutator. The electricity applied generate direct current.
· Alternator: is identical to a dynamo, except for the conmutator, which consists of two metallic rings connected to carbon brushes. This produces alternating current.
- Electric motors.
Transform electrical energy into movement. Use forces of attraction and repulsion.
- Relays.
A relay is an electromagnetic component that works as a switch. When the electricity stops flowing, the moveable contact goes back to its original position.
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