Question

what is power and efficiency of power​

Answer 1

• In physics, power is the amount of energy transferred or converted per unit time. In the International System of Units, the unit of power is the watt, equal to one joule per second. In older works, power is sometimes called activity. Power is a scalar quantity.

• Efficiency is the ratio of total output power to input power, expressed in percent. This is normally specified at full load and nominal input voltage. Power supply efficiency is the amount of the actual power delivered to the components divided by the electrical power drawn from the mains supply socket.

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Answer 2

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