Mathematical and Physical Journal
for High Schools
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I want the old design back!!! :-)

Problem P. 3813. (September 2005)

P. 3813. How can a gold leaf electroscope be charged a) negatively, b) positively by using a plastic rod, which was rubbed by a piece of fur?

(3 pont)

Deadline expired on October 11, 2005.


Statistics:

281 students sent a solution.
3 points:107 students.
2 points:71 students.
1 point:73 students.
0 point:27 students.
Unfair, not evaluated:3 solutions.

Problems in Physics of KöMaL, September 2005