Question

shows a cross section of three parallel wires each carrying a current of 15 A. The s in wires A and C are out of the paper, while that in wire B is into the paper. The figure Q5: What is the direction of the magnetic force by A on C? a. A does not exert force on C. d. out of the page g. downward b. rightward e. into the page h. none of these c. leftward f. upward .4 If the distance R 5.0 mm, what is the magnitude of the net force on a 4.0-m length of wire C from the above question'? a. 90 mlN e. 36 mN b. 54 mN f. none of these c. 30 mN d. 18 mN Q6: The magnetic flux through a loop perpendicular to a uniform magnetic field will change a. if the loop is replaced by two loops, each of which has half of the area of the original loop b. if the loop moves at constant velocity while remaining perpendicular to and within the uniform magnetic field c. if the loop moves at constant velocity in a direction parallel to the axis of the loop while remaining in the uniform magnetic field d. if the loop is rotated through 180 degrees about an axis through its center and in the plane of the loop e. in none of the above cases. 4

Answer 1