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Name: An alpha particle is released from rest at point A, which is located next to the positive plate of a parallel plate capacitor. The alpha particle then accelerates toward the negative plate, leaving the capacitor at point B through a small hole in the plate. The electric potential of the positive plate is 2500 V greater than that of the negative plate, so VA - VB = 2500 V. Once outside the capacitor, the alpha particle travels at a constant velocity until it enters a region of constant magnetic field of magnitude 0.55 T. The velocity is perpendicular to the magnetic field, which is directed out of the page. Find the radius r of the circular path on which the alpha particle moves in the magnetic field. Show all work and derivations for full marks. (4) B (out of paper ) Parallel plate capacitor UA = 0 mis 1. Two conducting wires parallel to each other carry current in the same directions. Using the appropriate hand rule, determine whether the wires will attract or repel each other. For full marks, draw a picture and state the rule that you used. (2) Bonus: Draw the direction of the induced current for the following diagram. (0.5) N SShow all your work for the following questions. Make sure to show all the formulas significant digits to receive full marks. 1. List at least two differences and two similarities between electric and magnetic fields. (2) 2. An ion with a charge of 7. 4 x 10 C and a speed of 3. 90 x 10 m/s enters an external magnetic field of 0. 357, at an angle of 30. 0 as shown below. Calculate the force on the ion. (3) N 3. Explain when a charge going through a magnetic field will experience maximum and minimum force