The Trouton–Noble paradox
نویسنده
چکیده
Mechanical and electromagnetic relations involved in the Trouton–Noble paradox are analysed on the basis of special relativity theory as well as on the basis of Maxwellian electrodynamics. It is shown that the paradox only arises when not all dynamical effects associated with the moving capacitor used by Trouton and Noble are considered. Crucial for the resolution of the paradox is the fact that the forces and torques in an electromagnetic system involving moving charge distributions are associated with both the mechanical momentum and electromagnetic momentum of the system. Once the electromagnetic momentum of the moving capacitor is properly taken into account, the paradox disappears.
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