S Shift N N х Ctrl Fo . Alt Student's name: 5/31 Bu X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X XA

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S Shift N N х Ctrl Fo . Alt Student's name: 5/31 Bu X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X XAX X X IB x xxxxx Х X - Problem 2 (31 points): The figure shows a top view of a bar that slides on two frictionless rails with a velocity ő as shown. The resistance is R = 6.20 2 and a 2.50-T magnetic field R is directed perpendicularly downward, into the page. The length of the bar is x x f = 1.20 m a) What is direction (clockwise, counterclockwise) of the induced current in the circuit consisting of the bar, the rails and the resistor? Explain how you can tell to assure getting full credit. b) How fast must the bar move for the induced current in the circuit to be 0.750 A? c) What is the magnetic force, both magnitude and the direction, on the induced current-carrying rail? d) What force, both magnitude and direction, must be applied to maintain sliding the bar on the rails at a steady rate with the speed found in part (a)?