On the radiation of the electromagnetic impulse pendulum |
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Authors: | P Hatzikonstantinou P G Moyssides |
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Institution: | (1) Department of Engineering Science, Division of Applied Mathematics and Mechanics, University of Patras, Patras, Greece;(2) Physics Department, National Technical University, Zografou Campus, 15773 Athens, Greece |
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Abstract: | Summary In this paper we clarify the sources of radiation in a number of experiments, concerning the electromagnetic impulse pendulum,
carried out by various authors. The calculated radiated energy was found to be negligible, in all cases, compared to the energy
stored in their systems, in contradiction to their claim. We elucidate the way by which Newton's third law is applicable and
how the reaction force of the moving pendulum is transferred to the stationary frame. In the MIT experiment of Graneauet al., average values for quantities like the time constant, resistance etc. are given ignoring their standard deviations. Calculating
and taking into account their errors, due to their dependence on the temperature, we found agreement between the theoretical
and experimental values of the pendulum momentum. |
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Keywords: | Classical electromagnetism |
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