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World 2 · Electric fields · 8 min · PRO

Potential and equipotentials

The electric landscape

PRO · Field Lab

World 2: Electric fields is part of PRO

The first world of Field Lab is free. PRO opens the other 29 lessons in 7 worlds — simulations, quizzes and all.

  • Charge and Coulomb's law
  • Field lines and superposition
  • The zero-field point
  • Forces on a test charge
  • Oersted's discovery
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  • All 26 labs — every world, every lesson
  • Practice exams and certificates

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