How do solar panels work?
Quiz by Greg Holloway
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5 questions
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- Q1What are most solar cells made from?SiliconCoalConcreatecopper120s
- Q2What is the carrier of the electric current from solar cells?waterSilicon atomsholesElectrons120s
- Q3What from the Sun causes the solar cell to produce the electricity?The shadow under the solar cellThe heat from the SunPhoton particles of sunlight120s
- Q4What creates the potential difference (voltage) in a solar cell?The p - n junctionAn outside generatorA batteryThe bonds between the silicon atoms120s
- Q5How efficient are the normal commercial solar cells?Less than 10%15-20%More than 70%As high as 46%120s