College Physics 10th Edition by Raymond Serway,Chris Vuille

Exercise 9

In Figure P19.23 the cube is 40.0 cm on each edge. Four straight segments of wire- ab , bc , cd , and da -form a closed loop that carries a current I = 5.00 A in the direction shown. A uniform magnetic field of magnitude B = 0.020 0 T is in the positive y -direction. Determine the magnitude and direction of the magnetic force on each segment.