Saturday, February 25, 2017

electromagnetism - Dirac's quantization rule


I first recall Dirac's quantization rule, derived under the hypothesis that there would exit somewhere a magnetic charge: gq4π=n2 with n a natural number.


I am wondering how the quantization of electric charge can be deduced from it. The quantization of the product gq is certainly not enough; what else is demanded?




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classical mechanics - Moment of a force about a given axis (Torque) - Scalar or vectorial?

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