That would be an electric generator. They are also called dynamos. An alternator is a type of generator that makes alternating current.
The device you are describing is likely a generator. It works by converting mechanical energy (motion) into electrical energy through the principles of electromagnetic induction. As magnets pass by or spin near coils of wire, a changing magnetic field induces an electric current in the wire. This current can then be used as a source of electrical power.
It's your basic electromagnetic device. Pressing the pickup wheel of the dynamo against a bicycle wheel in motion cause the inner parts of the dynamo to spin. What's spinning is a pair of magnets surrounded by coils. When the magnetic field through a coil changes you get electricity. That electricity can then power a light.
A device that uses magnets and coils of wire to produce electricity is called a generator. The movement of the magnets past the coils induces an electrical current through electromagnetic induction. Generators are commonly used in power plants to generate electricity for various applications.
The device you are referring to is called an electric generator. It works by converting mechanical energy into electrical energy through the interaction of magnets and coils of wire. When the magnets spin within the coil of wire, it induces a flow of electrons, generating electricity.
There are many different types of power plant but they all produce electricity the same way: by spinning huge magnets around an iron core inside a device called a turbine.
heater
An electric motor, an electric fan
-A generator or alternator -A Faraday Induction Coil
The electrical device is a transformer.
The electrical device is a transformer.
No device. Because of magnetic shield no magnets can produce any effect on the rotation of the disk in the electricity meter. You better consume less electricity there by your bill will be in your budget.
A pinwheel, fan, or other spinning device, attached to the axle of an electric generator, is stuck up into the wind. As the wind spins the device, the device in turn spins the generator.