Voltage
Electrical tension (or voltage after its SI unit, the volt) is the difference of electrical potential between two points of an electrical or electronic circuit, expressed in volts.[1] It is the measurement of the potential for an electric field to cause an electric current in an electrical conductor. Voltage is a property of an electric field, not individual electrons. Voltage, as a definition, can more easily be described as a representation of the “carrier” of electrons. Depending on the difference of electrical potential it is called extra low voltage, low voltage, high voltage or extra high voltage. Specifically, voltage is equal to energy per unit charge.[2] Between two points in an electric field, such as exists in an electrical circuit, the difference in their electrical potentials is known as the electrical potential difference. This difference is proportional to the electrostatic force that tends to push electrons or other charge-carriers from one point to the other.
