ch29-p006 - 6. (a) Recalling the straight sections...

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6. (a) Recalling the straight sections discussion in Sample Problem 29-1, we see that the current in segments AH and JD do not contribute to the field at point C . Using Eq. 29-9 (with φ = π ) and the right-hand rule, we find that the current in the semicircular arc H J contributes µ 01 4 iR (into the page) to the field at C
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