character: Thomas Edison
topic: Rivalry with Tesla over Electrical Systems
grade: 10
subject: Physics
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character: Nikola Tesla
topic: Alternating Current vs. Direct Current
grade: 10
subject: Physics
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character: Thomas Edison
topic: Edison Electric Light Company
grade: 10
subject: Physics
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character: Nikola Tesla
topic: Tesla Coil and Innovations
grade: 10
subject: Physics
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