Two long parallel wires perpendicular to the xy plane each carrying a current I=

Question

Two long parallel wires perpendicular to the xy plane each carrying a current I=5.00A but in opposite directions. What is the magnitude and direction of the B field at point P that is produced by the current in the two wires.

P is on the y axis at +3.00 cm

One wire is on the y axis at -5.00cm

The other wire is on the x axis at 4.00cm

The second part of the question introduces a third wire to the problem, this wire carries a current of 2.00A and is projecting out of the paper. What is the magnitude and direction of the magnetic force per unit length on this third wire.

Explanation / Answer

fig is not htere..so i will give you the formula

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