PHYS 3B 53 / 100 NAME: Diego Ayon Unit 3 Exam Professor Orozco 11/22/22 Po = 4R x 10 7 . m/A The following questions are multiple choice or free response. Clearly indicate your answer. You must show ALL work to receive any credit. 1. A negatively charged particle -Q is moving to the right, directly above a wire having a current I flowing to the right, as shown in the figure. In what direction is the magnetic force exerted on the particle due to the current? Explain. (8 points) - e F is the + direction B 2. A positively charged particle moves in the vertical direction as shown below. Indicate the direction of the magnetic field at points A, B, and C due to the moving charge. If no magnetic field exists at a point, write "8 = 0". (8 points) OC OB At Out OF Page + 3 A O B= into Page 3. The following figures show various charges moving through magnetic fields. Indicate the direction of magnetic force (if applicable) in each figure. If no magnetic field exists at a point, write "F = 07. (8 points) BA X BX 43 OFX