For a conducting rod of U-shaped metal wire of length, I = 30m is connected to a lightbulb having a resistance of 8.0 N, as shown in the figure below. A constant uniform magnetic field of strength 0. 85 T is applied perpendicular to and out of the paper. An applied external force pulls the rod to the right with a constant speed of 4.0 m/s. a) Calculate the induced emf in the rod. b) Find the magnitude and the direction of the induced current in the resistor. c) Calculate the power dissipated in the resistor during the time when the rod moves in the field. d) Calculate the external force necessary to move the rod at a constant speed through the magnetic field. F applied B-field I in (x) X x X X x x X x x X X x X X X

For a conducting rod of U-shaped metal wire of length, I = 30m is connected to a lightbulb having a resistance of 8.0 N, as shown in the figure below. A constant uniform magnetic field of strength 0. 85 T is applied perpendicular to and out of the paper. An applied external force pulls the rod to the right with a constant speed of 4.0 m/s. a) Calculate the induced emf in the rod. b) Find the magnitude and the direction of the induced current in the resistor. c) Calculate the power dissipated in the resistor during the time when the rod moves in the field. d) Calculate the external force necessary to move the rod at a constant speed through the magnetic field. F applied B-field I in (x) X x X X x x X x x X X x X X X