A power transformer is a device that consists of a coil wrapped around an electromagnet that transfers electricity from one circuit to another without changing the frequency of the electric energy. Although the frequency... More » Science Physics Electricity

Sheets of magnetic steel in the transformer vibrate in a magnetic field, generating an audible hum. Transformers operate by changing an electric current with one voltage and current value to a magnetic field, which is th... More » Home & Garden Home Maintenance Electrical

Building a Tesla coil involves building a power coil using PVC, plywood, wheels, a transformer, bolts, nuts, washers, a computer fan, a battery holder, capacitors, resistors, a base to mount the device to, copper tubing,... More » Science Physics Electricity
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A transformer's function is to maintain a current of electricity by transferring energy between two or more circuits. This is accomplished through a process known as electromagnetic induction. More » Science Physics Electricity

A Direct Current to Alternating Current inverter circuit generates a sinusoidal flow of charged electronics at a designated frequency to power electronics. This type of circuit is often use to convert power transmission ... More » Science Physics Electricity

Wind turbines turn the kinetic energy of the wind into mechanical energy and then electricity through the use of a shaft and a gearbox that power an internal generator. Sensors in the wind turbine allow it to turn and ad... More » Science Physics Electricity

The main sources of electricity are fossil fuels, nuclear power and renewable energy. Electricity is a secondary source of energy derived from primary sources. More » Science Physics Electricity