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A long straight current-carrying wire with a current /, = 3A is 0.5m
above the second long straight current-carrying wire with a current of
/2 =4A in the same direction. (a) calculate the magnitude and
direction of the net magnetic field at point P, a distance of 1/3a from
the wire 2. (b) What is the magnitude and direction of the force per
unit length that wire 2 exerts on wire 1?
%3D
%3D
a=0.5m

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