What Does Voltage

For industrial machinery see industrial and multiphase power plugs and sockets some countries have more than one voltage available.

What does voltage. Problems with the equipment of your utility company. In other words it is a measurement of the energy contained within an electric field or an electric circuit at a given point it is equal to the work that would have to be done per unit charge. Or when equipment that draws a lot of electricity. Voltage is the pressure from an electrical circuit s power source that pushes charged electrons current through a conducting loop enabling them to do work such as illuminating a light.

Voltage is a representation of the electric potential energy per unit charge. If a unit of electrical charge were placed in a location the voltage indicates the potential energy of it at that point. In brief voltage pressure and it is measured in volts v. Voltage also called electromotive force is a quantitative expression of the potential difference in charge between two points in an electrical field.

Voltage electric potential difference electric pressure or electric tension is the difference in electric potential between two points which in a static electric field is defined as the work needed per unit of charge to move a test charge between the two points. The term recognizes italian physicist alessandro volta 1745 1827 inventor of the voltaic pile the forerunner of today s household battery. It is the push that causes charges to move in a wire or other electrical conductor it can be thought of as the force that pushes the charges but it is not a force voltage can cause charges to move and since moving charges is a current voltage can cause a current. The greater the voltage the greater the flow of electrical current that is the quantity of charge carriers that pass a fixed point per unit of time through a conducting or semiconducting medium for a given resistance to the flow.

Power surges which increase the voltage in your electricity lines can be caused by lightning striking nearby increasing the electric pressure by millions of volts even a surge protector won t be able to save your computer in this case. In the international system of units the derived unit for voltage potential difference is named volt.