The wire in Fig. 29-7 a carries a current i and consists of a circular arc of radius R
Chapter 29, Problem 29(choose chapter or problem)
The wire in Fig. 29-7 a carries a current i and consists of a circular arc of radius R and central angle 1T12 rad, and two straight sections whose extensions intersect the center C of the arc. What magnetic field B (magnitude and direction) does the current produce at C?
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