In Fig. 29−42, two long straight wires are perpendicular to the page and
separated by distance d1=0.75cm .
Wire 1 carries 6.5 A into the page. What
are the (a) magnitude and (b) direction
(into or out of the page) of the current
in wire 2 if the net magnetic field due to the two currents is zero at point P located at distance d2=1.50cm from
wire 2?