Mathematical and Physical Journal
for High Schools
Issued by the MATFUND Foundation
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Problem M. 309. (November 2010)

M. 309. Nowadays many household devices or toys are operated with button cells. Buy two different and unused button cells and determine by measurement their

a) electromotive forces;

b) internal resistances;

c) electrical energy.

(6 pont)

Deadline expired on December 10, 2010.


8 students sent a solution.
6 points:Gargauly Gergő János, Szabó 928 Attila.
5 points:Barta Szilveszter Marcell, Pataki Bálint Ármin, Szemes Gábor Bence.
3 points:1 student.
2 points:2 students.

Problems in Physics of KöMaL, November 2010