7)Power+and+its+relation+to+energy

= Powe r =
 * **Power is the rate at which work is performed or energy is transmitted, or the amount of energy required or expended for a given unit of time**
 * **P=W/t** **,where P //is power,// W //is work and// t** //**is time**//
 * ** Average power is the average amount of work done or energy transferred per unit time**
 * ** Instantaneous power is the limiting value of the average power as the time interval Δt //approaches zero.//**
 * **SI unit of power is the watt (W), which is equal to one joule per second**
 *  **W=FΔ//s//, where //F// is force and Δ//s// is the displacement of the object.**