PHYS 2002 : Practice Exam 2
Document Summary
Phys2002 spring 2012 practice exam 2 (ch. Green: a long straight wire is held fixed and carries a current i as shown. A rectangular conducting loop is sitting to the left of the wire and is free to move. If the current in the wire is decreased to zero, what happens: the loop moves up, the loop moves down, the loop moves left, the loop moves right, the loop does not move. I: the three loops of wire shown in the figure all hang in a region of space where a uniform magnetic field exists everywhere out of the page. Loop 1 swings back and forth like the bob on a pendulum, loop 2 rotates about a vertical axis, and loop. 3 oscillates up and down on a spring. B: loop 1 only, loop 2 only, loops 1 and 2, loops 1 and 3, all three loops.
