Two parallel conductors carry current in opposite directions. One conductor carr

Question

Two parallel conductors carry current in opposite directions. One conductor carries a current of 10.0-A. Point A is at the midpoint between the wires, and point C is at a distance d/4 below the wire carrying the 10.0-A current. If d=36.4cm and I is adjusted so that the magnetic field is zero at C, find

(a) The value of the current I. What should do first?
____ A

(b) The magnetic field at point A.
_____ T

Two parallel conductors carry current in opposite directions. One conductor carries a current of 10.0-A. Point A is at the midpoint between the wires, and point C is at a distance d/4 below the wire carrying the 10.0-A current. If d=36.4cm and I is adjusted so that the magnetic field is zero at C, find (a) The value of the current I. What should do first? (b) The magnetic field at point A.

Explanation / Answer

From ampere's law, the magnetic field around a current I is ?BdL =

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