Mathematical and Physical Journal
for High Schools
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Problem P. 4700. (January 2015)

P. 4700. A uniform metal disc of height \(\displaystyle h\) and of cross section \(\displaystyle A\) (\(\displaystyle h\ll \sqrt{A}\)) is moving at a great acceleration parallel to the symmetry axis of the disc (\(\displaystyle {a\gg g}\)). How many electrons appear at that side of the disc which is opposite of the direction of the acceleration?

(5 pont)

Deadline expired on February 10, 2015.


Statistics:

30 students sent a solution.
5 points:Berta Dénes, Fehér Balázs, Fülöp Erik, Kovács Péter Tamás, Körmöczi Dávid, Körtefái Dóra, Marosvári Kristóf, Öreg Botond, Radnai Bálint, Sal Kristóf.
4 points:Asztalos Bogdán, Balogh Menyhért, Büki Máté, Forrai Botond, Gróf Tamás, Kasza Bence, Olosz Balázs.
3 points:11 students.
2 points:2 students.

Problems in Physics of KöMaL, January 2015