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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?

(3 pont)

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.

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