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1 g wire of length 88.2 cm is suspended by a pair of flexible leads in a uniform magnetic field of magnitude 0.617 T (see the figure).
A 13.1 g wire of length 88.2 cm is suspended by a pair of flexible leads in a uniform magnetic field of magnitude 0.617 T (see the figure). What is the magnitude of the current (in A) required to remove the tension in the supporting leads?