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A current is set up in a wire loop consisting of a semicircle of radius 4.52 cm, a smaller concentric semicircle, and two rad

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masnetcfela a+ fhe cent en B В 2R 2 R s.I B - 4.I Bi- 2 Вь Е (3) 2. 7.1 ) R Въ IS.구3 R 3 R 4. 52 2 Y = 2.26 cm

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