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A wire with a length of 3.8 m and a mass of 0.71 kg is in a region of space with a magnetic field of 0.78 T. What is the minimum current needed to levitate the wire? Express your answer using two significant figures.
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Transcribed Image Text:A wire with a length of 3.8 m and a mass of 0.71 kg is in a region of space with a magnetic field of 0.78 T. What is the minimum current needed to levitate the wire? Express your answer using two significant figures.
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