If ΔW is the amount of work performed during a period of time of duration Δt, the average powerPavg over that period is given by the formula
It is the average amount of work done or energy converted per unit of time. The average power is often simply called "power" when the context makes it clear.
Power averaged over time, which includes a complete on-off cycle. For example, a pulsed transmitter sends out RF energy in bursts. The peak power is averaged over the pulse time (duty cycle).
