Q1) A railgun uses the magnetic force on electric currents to launch projectiles at high speeds. The railgun shown in the figure has a 6 V power supply connected to two conducting rails. An 8-cm long piece of copper wire with a mass of 25 grams, and resistance of 0.86 mo slides freely on the rails in a uniform magnetic field of 0.93 T. The resistance of the rails is negligible. Exam question. X XX X Do not share or post. X X X X X X X X 8 cm X X X X 6.0 V X X X x 0.93 T X XX Xc) What is the direction of the force on the wire? (3 points, out of which 1 point is for a figure showing the directions of I, B, and F).d) If the wire starts from rest, through what distance must the force be applied to it so that it reaches a velocity of 30 mis? (4 points, out of which 1 point is for the equations being used, 1 point for the steps of algebra, and 1 point is for the answer in m or cm}