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The paper deals with some electromagnetic aspects of interest for their impact on the ITER project. In particular the following topics are illustrated: • feedback control of the distance between plasma separatrix and first wall; • identification of the plasma separatrix from signals detected by magnetic sensors; • ohmic losses in the cold structures, during normal operation scenario and plasma disruptions. The numerical results, which mainly refer to the ITER TAC-8 configuration, are discussed in the paper with the aim of contributing to the still open ITER design options.