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    When current flows through 2 parallel wires (same amount of current)

    I don't understand what attraction means. Is it the force between electron and proton? In wires, only free electrons in conduction band can flows and their velocity is far less than relativistic regime as far as I know. But the only information propagation is close to the speed of light.
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    Question about momentum unit and its conversion to energy.

    Oh thanks people! Thus..since momentum in the paper is, for example, 0.79 MeV/c so pc should be simply the momentum multiplied by c, 0.79 MeV right?
  3. G

    Question about momentum unit and its conversion to energy.

    Hello. I'm reading some accelerator physics paper showing the momentum unit for the accelerated particles as MeV/c. I'm not interested in the momentum but energy thus I really want to convert this to energy. How it is done? Simply multiplying c? if so, there must be some reason for justify...
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