A wire with current i ! 3.00 A is shown in Fig. 29-53. Two

Chapter , Problem 25

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A wire with current i ! 3.00 A is shown in Fig. 29-53. Two semi-infinite straight sections, both tangent to the same circle, are connected by a circular arc that has a central angle and runs along the circumference of the circle. The arc and the two straight sections all lie in the same plane. If B ! 0 at the circles center, what is u?

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