Figure shows certain wire segments joined together to form a coplanar loop. The loop is placed in...

Figure shows certain wire segments joined together to form a coplanar loop. The loop is placed in a perpendicular magnetic field in the direction going into the plane of the figure. The magnitude of the field increases with time. I_1 and I_2 are the currents in the segments a b and c d. Then,
(1) I_1I_2
(2) I_1I_2
(3) I_1 is in the direction b a and I_2 is in the direction c d
(4) I_1 is in the direction a b and I_2 is in the direction d c

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