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 11 January 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.|