The sum total of all the chemical reactions in your body are referred to as metabolism. And all chemical reactions run on chemical energy. The main molecule of energy in your body, and all living things in general, is ATP (adenosine triphosphate).
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When you use electrical energy, it powers electrical devices such as lights, appliances, and electronic devices by converting the energy into various forms of work. The electrical energy flows through a circuit, creating a flow of charged particles (usually electrons) that generate heat, light, or mechanical motion, depending on the device being powered.
Current flows along the wires to the bulb. There is a potential difference (voltage) between the wires and across the filament of the bulb, and as electric charges (current) flow down the potential gradient in the filament, energy is released from the electromagnetic field and converted into heat. The temperature of the filament rises until it is incandescent so that it emits light. Unfortunately it also releases about 80% of the power as heat.
The power drawn from the supply causes the generator at the nearest power plant (if steam-driven) to require more torque to drive it, and it slows momentarily, so that initially the energy for the bulb is supplied from the kinetic energy of the rotating parts. The phase angle of the shaft begins to lag slightly as a result, and sensors detect the small difference and request more steam to supply the turbine. More steam flows in from the boiler to correct the change, and this in turn causes more fuel to be supplied to the boiler to restore the status quo.
Thus any power drawn from the supply causes more fuel to be burned and more CO2 to be exhausted into the atmosphere.
A power plant using hydroelectric power, for example, uses a higher water-flow to achieve a higher output power.
Light bulbs: Light bulbs use electrical energy to produce light. Television: Television sets use electrical energy to power the screen and speakers. Laptop computers: Laptops use electrical energy to operate the display, processor, and other components.
Hair straighteners typically use electrical energy, which is converted into heat energy to style the hair by passing it through heated plates.
The hairdryer usually use the electrical energy. When heated, the hairdryer will convert electrical energy to heat energy which can then be used for hair drying.
When electrical energy passes through a household device like a blender or a toaster, it is converted into other forms of energy. In the case of a toaster, electrical energy is converted to heat to toast bread. In a blender, electrical energy is converted to mechanical energy to blend food.
When you turn on a toaster, electrical energy is transferred from the power source to the heating elements inside the toaster. The electrical energy is converted into heat energy, which warms up the toaster and toasts the bread.