Question

19. Two conducting rails (viewed from the side in the not-to-scale drawing) are tilted upward so that each makes an angle of 62.0 with the horizontal. A magnetic field perpendicular to the incline has a magnitude of 0.0750 T. The 0.962-kg aluminum rod (length-1.40m side length 1.60 cm) is released from rest and begins to slide down the rails withou friction A 345 2 resistor (not shown) connects the rails at the bottom of the incline As the rod slides down the incline, it generates motional emf, which drives a current through the rod, which interacts with the field, which causes the rod to cease accelerating and slide with constant speed. We are going to find that speed. I've broken down the process into a series of simple steps.You may, if you'd like, give purely symbolic answers until the final part. (2pts/part) ) Draw a free-body diagram for the aluminum rod. From the description given above, it is possible to determine in which direction thecurrent flows Does the current flow into the page or out of the page? 2 in to r. (in) Newton's 2 law can help you determine the magnitude of the current in the sliding rod. Do so. Hint: since a , the coordinate system doesn't matter, so you are free to use the simplest one you can think of) (ui) Calculate the resistance of the aluminum rod. (v) Use Ohm's law to determine the emf generated by the movement of the rod. Treat the resistance of the rod like internal resistance (v) You can now find the equilibrium speed of the rod's descent