character: Nikola Tesla
topic: Alternating Current vs. Direct Current
grade: 11
subject: Chemistry
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character: Thomas Edison
topic: Direct Current Systems
grade: 11
subject: Chemistry
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character: George Westinghouse
topic: Supporting Alternating Current
grade: 11
subject: Chemistry
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character: Michael Faraday
topic: Electromagnetism and Electricity
grade: 11
subject: Chemistry
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