A rectangular loop of wire in free space joints point A(1,01,) to point B(3,0,1) to point C(3,0,4) to point D(1,0,4) to point A. The wire carries a current of 6mA, flowing the az direction from B to C. A filamentary curent of 15A flows along the entire z axis in the az direction. (a) find F on side BC. (b) Find F on side AB.