Mathematical and Physical Journal
for High Schools
Issued by the MATFUND Foundation
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Problem P. 4648. (May 2014)

P. 4648. Three thin insulating rods, which all can be considered infinitely long and which are in the same plane, crossing each other such that they form an oblige triangle, are charged uniformly to the same density of charge. Where should a point-like charge be put, if it is to be in equilibrium?

(6 pont)

Deadline expired on June 10, 2014.

Sorry, the solution is available only in Hungarian. Google translation

Megoldásvázlat. A háromszög súlypontjában a ponttöltés (instabil) egyensúlyi helyzetben van.


25 students sent a solution.
6 points:Antalicz Balázs, Asztalos Bogdán, Balogh Menyhért, Berta Dénes, Blum Balázs, Bugár 123 Dávid, Dinev Georgi, Fehér Zsombor, Fekete Panna, Forrai Botond, Holczer András, Horicsányi Attila, Janzer Barnabás, Juhász Péter, Öreg Botond, Sal Kristóf, Sárvári Péter, Trócsányi Péter, Virágh Anna.
4 points:3 students.
3 points:1 student.
0 point:2 students.

Problems in Physics of KöMaL, May 2014