Mon Prof Augmenté
Roof Solar Panel
Age 17 · Daily Life
A photovoltaic panel turns sunlight into electric current. That current can run a lamp and a small kitchen appliance in a home.
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In the picture
- Sunlight: radiant energy arriving at the panel surface
- Silicon cell grid: dark cells joined by thin metal lines
- Layered cell cross-section: glass, contact, silicon, and backing layers
- Output cable: current leaving the panel toward the house
- Lit lamp: a household load using the electric current
Examples
- A rooftop panel charging a phone through a wall adapter.
- A solar garden light storing daytime charge for nighttime illumination.
Key takeaways
- Photovoltaic cells produce direct current when light strikes them.
- An inverter or adapter is usually needed to run standard household AC devices.
Quiz: Roof Solar Panel (Age 17)
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What does a photovoltaic panel do with sunlight?
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What kind of current do photovoltaic cells produce when light strikes them?
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What is usually needed to run standard household AC devices from a photovoltaic panel?
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