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A battery.
Mechanical and Electrical
The "produced energy" would most likely be transmitted in the form of an electrical current; you can use standard equipment to measure that. If you manage to measure the voltage, the current, and the power factor, you can multiply everything together to get the power; multiply power by time, and you get energy.
A nuclear power plant produces electrical (electromagnetic) energy, or what most call electricity or electric power.
Most is generated by coal burners in Toronto, Ohio. It produces the electricity for the area.
WII remotes are electrical devices which consume power. All devices which use energy require a source for this energy. Wii decided that batteries made the most sense for the energy source.
Most computers receive electrical energy through a standard wall socket, others receive electrical energy from batteries. Large mainframe computers sometimes receive electrical energy through cables wired directly to the main breaker box, without any plugs/sockets.
Most probably electrical energy.
Fundamentally, there are two energy conversions taking place: electrical energy is converted into heat energy in the heating coils and electrical energy is converted into mechanical energy in the fan motor. The moving air transfers heat to wet hair by convection, so the temperature of the water rises, which causes its evaporation rate to increase. Some of the heat is absorbed by the water molecules as they go from the liquid phase to the vapor phase. Secondarily, some of the heat is emitted as infrared radiation and some of the mechanical energy is emitted as sound waves. Eventually, these all dissipate as heat within the room.
Energy from sunlight is probably the most important energy because it is converted into chemical energy in photosynthesis. Sunlight is the ultimate source of energy for most species on the earth. Also, solar energy can be harnessed to produce electricity that can be used to fuel our homes and businesses, and other objects.
The source of energy for most organisms is chemical energy and sunlight.
fule fossile is the most used energy source