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A long straight wire lies along the x axis carries a current of 15 amps in...

A long straight wire lies along the x axis carries a current of 15 amps in the position x direction. A second long straight wire lies parallel to the first and carries a current of 20 amps in the negative x direction. They are separated by a distance of 7.00 cm.  What is the direction and magnitude of the resultant. magnetic field at a point in the xy plane 4 cm. from the first wire and 3 cm from the second?

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