Field of a long wire: As shown in the figure, two long straight wires are separated by a distance of The currents are to the right in the upper wire and to the left in the lower wire. What are the magnitude and direction of the magnetic field at point P, which is a distance below the lower wire?

Question

Field of a long wire: As shown in the figure, two long straight wires are separated by a distance of  The currents are  to the right in the upper wire and  to the left in the lower wire. What are the magnitude and direction of the magnetic field at point P, which is a distance  below the lower wire?

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The Answer of Field of a long wire: As shown in the figure, two long straight wires are separated by a distance of  The currents are  to the right in the upper wire and  to the left in the lower wire. What are the magnitude and direction of the magnetic field at point P, which is a distance  below the lower wire?

Field of a Long Wire: as Shown in the Figure