Two parallel conductors carry currents in opposite
Chapter 19, Problem 19.56(choose chapter or problem)
Two parallel conductors carry currents in opposite directions, as shown in Figure P19.56. One conductor carries a current of 10.0 A. Point A is the midpoint between the wires, and point C is 5.00 cm to the right of the 10.0-A current. I is adjusted so that the magnetic eld at C is zero. Find (a) the value of the current I and (b) the value of the magnetic eld at A.
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