Generators are devices that produce electrical energy from mechanical energy through electromagnetic induction in certain cases. Today's generator operates on the principle of electromagnetic induction discovered by Michael Faraday in 1831-32. Faraday discovered that the flow of electric charges could be induced by moving an electrical conductor, such as a wire containing electric charges, in a magnetic field. This movement creates a voltage difference between the two ends of the wire or electrical conductor, which causes the electric charges to flow, thereby producing an electric current. Rather than creating electricity, generators provide a flow of electricity. They activate electrons coming through an external source within an electrical circuit. It is important to understand that a generator does not actually 'create' electrical energy. Instead, it uses the mechanical energy supplied to it to force the movement of electric charges present in the wire of its windings through an external electrical circuit. This flow of electric charge constitutes the output electric current supplied by the generator. Generators are used for a wide variety of purposes and are available in many different forms.

HOW DOES A GENERATOR WORK? It must be turned by a prime mover driven by an internal combustion engine or gasoline. It can be a turbine driven by overheated steam or water falling from a source. Generators often use engines, turbines, cranks, pistons, or other mechanical energy sources. This causes them to be very large in size. They are built to generate electricity for any building, city, or region. Water, wind, seismic activity, manual labor, magnetism, steam, compressed air, or gasoline can be used to provide a power source to the generator. However, gasoline generators are the most common for commercial and domestic applications. In all generators, a mechanical force is used to move electrons and induce an electrical current in the circuit, or to move a turbine or another device. The electricity is then directed through copper wires to external machines such as lighting systems or other electronic devices. Generators are often used in hospitals, office buildings, and supermarkets to provide electricity to the entire building when power is interrupted. This is important because vital electronic devices must be continuously connected to a power source. Generators are also used in power plants to convert nuclear, mechanical, or chemical energy into electricity that utility companies distribute to an entire city or county. Domestic generators support basic household appliances such as lighting systems and refrigerators during times of distress until power is restored. It is also important to note that the alternator found in every modern automobile is a form of electrical generator.

Under the generators category, there are listings and prices for 2nd hand and new generator sellers and second hand generators for sale from the owner.