| Summary: | International audience To bring a vision of electrical engineering for future energy challenges, the laws of electromagnetism are derived from variational principles deduced from thermostatistics. While flux density divergence-free is obtained everywhere from the stationary condition on the Gibbs free energy, the Faraday law and the Ohm law with motion are obtained, in conductors, by assuming a trend for a reversible evolution of the electromagnetic field. The approach is consistent with Finite Element Method, multi-scale optimization (from scratch to the Life Cycle Assessment of the network) and finance allocation
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