Problem P. 3934. (December 2006)
P. 3934. The plates of a parallel plate condenser are horizontal and a small charged oil drop is floating between them. In what direction will the drop move if the plates of the condenser, which are connected to a battery which supplies constant voltage, are moved closer to each other?
Deadline expired on January 11, 2007.
106 students sent a solution. 3 points: 66 students. 2 points: 5 students. 1 point: 10 students. 0 point: 13 students. Unfair, not evaluated: 12 solutions.