ʻO nā ʻokoʻa nui ma waena o ke kaapuni magnetic a me nā waiwai kino kaapuni penei: (1) Aia nā mea conductive maikaʻi ma ke ʻano, a aia kekahi mau mea e hoʻokaʻawale i ke au. No ka laʻana, ʻo ka resistivity o ke keleawe he 1.69 × 10-2qmm2 / m, ʻoiai ʻo ka lāʻau he 10 mau manawa ...
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