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Energy :
Energy :
Energy is a scalar quantity that represents the capacity to perform work or cause change. It exists in various forms, such as kinetic, potential, thermal, electrical, chemical, nuclear, and more. The SI unit of energy is the joule (J). Key points about energy include:
Power :
Power :
Power is the rate at which energy is transferred, used, or transformed over time. It measures how quickly work is done or energy is expended. The SI unit of power is the watt (W), where 1 watt equals 1 joule per second (
1 W=1 J/s
1W=1J/s). Key points about power include:
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