Watt Calculator
Power = Voltage * Current - in symbols: P = V * I. This power equation, as well as the power unit, were named after James Watt - a Scottish engineer. One watt is the power at which the work performed in one second is equal to one joule: 1W = 1J / 1s. In electrical circuits, one Watt is defined as the rate of work when a current of one ampere ...