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This question already has an answer here:

When we establish relation between mass and charges, we take parameters such as

  • The law governing the property (Coulomb's for charge, Newton's for mass)
  • The potential associated with them (Gravitational versus electrical)
  • Both being fundamental forces of nature

Similarly can we take center of charge just as we take a centre of mass in many approximations?

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merged by rob Apr 17 '17 at 21:43

This question was merged with Why isn't there a centre of charge? because it is an exact duplicate of that question.