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# Two Current-Carrying Wires: Direction of Net Magnetic Field

APPH12-XVLZVT

Two horizontally-oriented parallel wires carry equal magnitudes of current directly to the left and to the right, as shown in the diagram above.

Which of the following indicates the direction of the magnetic field at point P, which lies directly midway between the two wires?

A

Into the page.

B

Out of the page.

C

Zero magnetic field.

D

Impossible to answer without knowing the exact value of $I$.