PHYS 202 Midterm: PHYS 202 TAMU 202s07 Exam 1
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Short answers: consider an electric eld given by ~e(x, y, z) = a i + b j + cz k, where a, b and c are constants. What is the magnitude of the electric ux through a square that is parallel to the xy plane and whose corners are located at the points (x,y,z)=(0,0,1),(1,0,1),(0,1,1),(1,1,1). Answer: = c: two positively charged point particles 4q and q are placed at the points x = 0 and x = d, respectively. 3 d: an alpha particle (charge +2e) has an initial kinetic energy e very far from a stationary xenon nucleus (charge +54e). Assume that the xenon nucleus remains stationary during the process. Prob 1 four point charges are located at the corners of a square of side l as shown in the gure. (a) draw a free-body force diagram for the q charge at the bottom right corner of the square.