Physics P2 - Collecting energy from the sun

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Photocells are devices that transfer light energy directly into electrical energy. They produce DC - direct current - electricity. This is electricity in which the current moves in the same direction all the time.

The output of photocells depends on the surface area that is exposed to light. For a given light intensity, the larger the area, the greater the power output.

Solar panels do not generate electricity - rather they heat


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