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Solar Cells P1

QuestionAnswer
Roughly, how are solar cells used? They generate electric energy from heat energy coming from the sun
What can they be used in?(4) • Watches • Calculators • Road signs • Satellites
Why are solar cells good for using in these appliances? Because they don't require a lot of energy to run
What are the advantages of solar cells?(4) • No pollution • No running costs • Reliable in sunny countries • No running costs
What are the disadvantages of solar cells?(4) • Can't be used at night • High initial costs • Only practical on small scale • Too expensive to connect to national grid
Created by: GuyBrazier