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The diagram shows a rectangular bar of a metal which has a current of 5.0 A through it. The bar is placed inside a magnetic field so that its weight is supported by the magnetic force. Calculate the minimum value of the magnetic field needed for that. The density of the metal is 2.7 x 10 kg m³. 5.0 A 5.0 A 10 mm 10 mm
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Transcribed Image Text:The diagram shows a rectangular bar of a metal which has a current of 5.0 A through it. The bar is placed inside a magnetic field so that its weight is supported by the magnetic force. Calculate the minimum value of the magnetic field needed for that. The density of the metal is 2.7 x 10 kg m³. 5.0 A 5.0 A 10 mm 10 mm
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Write the equation to find the magnetic field.
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