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 103 kg m-3.

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter22: Magnetic Forces And Magnetic Fields
Section: Chapter Questions
Problem 23P: A wire 2.80 m in length carries a current of 5.00 A in a region where a uniform magnetic field has a...
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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 103 kg m-3.

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