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:star:electricity:star: - Coggle Diagram
:star:electricity:star:
electric charge
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generalities
Matter is made of atoms, which contain even smaller particles. Each atom has a nucleus made of protons (positive charge) and neutrons (no charge), with electrons (negative charge) moving around it.
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example: when you rub your pen with a cloth, the electrons come
off the cloth and move to the pen, which becomes
negatively charged. the electrons at the end of the paper closest
to the pen are repelled to the other side. Then the
nearer side becomes positively charged. This is why the
pen attracts the paper
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electric current
an electric circuit is a closed, continuous loop of conductive material, such as wire, that allows electricity (electrons) to flow from a power source through components to perform work.
generator
The generator provides energy to move electrons. Batteries are common generators that use chemical reactions, but they can impact the environment.
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Photovoltaic solar cells
are nonmechanical devices that convert sunlight directly into electricity using semiconductor materials like silicon
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Hydrogen cells
an electrochemical device that generates electricity by combining hydrogen and oxygen, producing only water and heat as byproducts.
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receptors
receptors are components in a circuit that change electrical energy into other forms like light, heat, or motion.
Electrons carry energy from the generator around the circuit, and as they pass through these components, some of the energy is used (for example, to light a bulb or run a motor).
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Electricity comes from:
Non-renewable - fossil fuels, uranium
Renewable - wind, water, solar
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