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The effective frequency-dependent transverse resistivity experienced by coupling currents in superconducting cables was studied experimentally. The results extend the theory regarding the effective transverse resistivity of soldered strands to the whole AC domain. An accompanying magnetic effect due to the twist of the filaments has been measured and qualitatively explained by a simple model of the filament layer in the strands. It is seen that the coupling current experiences maximum resistivity if the strands are almost untwisted.