character: George Westinghouse
topic: AC vs. DC Current Debate
grade: 10
subject: Physics
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character: Thomas Edison
topic: DC Current Supporter
grade: 10
subject: Physics
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character: Nikola Tesla
topic: Advocate for AC Power
grade: 10
subject: Physics
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character: Charles Proteus Steinmetz
topic: Contributions to AC Technology
grade: 10
subject: Physics
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