Question:
of 100 A A long horizontal rigidly supported wire carries a
Last updated: 6/10/2023
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of 100 A A long horizontal rigidly supported wire carries a current I directly above it and parallel to it is a fine wire that carries a current I of 20A and weighs 0 073 N m How far above the lower could the second wire be kept if we wish to support it by magnetic repulsion Given permeability constant o 4x107 Wb Am O O O 54 8 mm 0 548 mm 0 0548 mm 5 48 mm