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Like charges repel and unlike charges attract. But when do like charges attract and unlike charges repel?Please cite an example to justify it.

Qmechanic
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rastyrocky
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1 Answers1

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Well I can write a tricky answer and say that if I have two electron loops, each loop will act as a separate magnet and if I'm able to orient the loops properly such that the north pole faces the north pole, I may have repulsion between the two systems.

This is possible only if we disregard the coulumb's attraction which is always greater than magnetic field that can be produced by such a setup.

But there has been an experiment in which such a phenomenon was observed where negatively charged entity seemed to attract another negatively charged entity to form a stable product. A model was used to explain this and this model explained it without violating Coulumb's law. Link below if you're interested in reading more about it.

http://pubs.acs.org/doi/abs/10.1021/acs.jpclett.6b00981

Sad_lab_rat
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