Some solar cells function by collecting electrons that are emitted from a metal or semiconductor due to sunlight shining on them. What principle are solar cells primarily based on?

the law of conservation of energy

Explanation:

A basic rule of physics called the law of conservation of energy says that we can't magically create energy or make it vanish into thin air; all we can do is convert it from one form to another. That means a solar cell can't produce any more electrical energy than it receives each second as light.

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explanation:

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explanation:

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