Closed System, Insulation, Efficiency, Elastic Potential, Fossil Fuels, Ohms, Joule, Kinetic Energy, Power, Energy Resource, Specific Heat , Spring Constant, System, Thermal Conductivity, Waste Energy, Watt, Work Done, Live Wire, Amperes, Diode, Neutral Wire, Earth Wire, Electric Field Lines, Electrical Current, Electrical Work,

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