College Physics 10th Edition by Raymond Serway,Chris Vuille

تمرين 86

A conductor suspended by two flexible wires as shown in Figure P19.20 has a mass per unit length of 0.040 0 kg/m. (a) What current must exist in the conductor for the tension in the supporting wires to be zero when the magnetic field is 3.60 T into the page (b) What is the required direction for the current