Mathematical and Physical Journal
for High Schools
Issued by the MATFUND Foundation
Already signed up?
New to KöMaL?
I want the old design back!!! :-)

Problem P. 3940. (December 2006)

P. 3940. Two voltage supplies are connected parallel to the same resistor. The electromotive force of one of them is U1, and its internal resistance is R1. The emf of the other is U2, and its internal resistance is R2. What is the resistance R of the resistor if it is to dissipate the greatest power?

(4 pont)

Deadline expired on January 11, 2007.


Statistics:

47 students sent a solution.
4 points:Aczél Gergely, Almasi Susann Melinda, Andrásik Attila, Berta Katalin, Blastik Zsófia, Blázsik Zoltán, Bogár 560 Péter, Bőle Pál, Csató Bertalan, Danka Miklós András, Deli Gábor, Dudás János, Farkas Ádám László, Fodor Tibor, Fülöp Bálint, Győri Tamás Noé, Hegyi Ádám, Kovács 888 Gábor, Latorovszky András, Lovas Attila, Lovas Lia Izabella, Máté István Mátyás, Megyeri Balázs, Nagy 224 Csaba, Nagy Zsolt Péter, Nyíri Dávid Ákos, Pálovics Róbert, Pásztor Árpád, Peregi Tamás, Réti Dávid, Roósz Gergő, Sándor Bulcsú, Szilágyi Zsombor, Szűcs Gergely, Takács 484 Marcell, Till Zoltán, Tolnai Gábor, Tolner Ferenc, Tűri Balázs, Tüzes Dániel, Varga Bonbien, Veres Máté.
2 points:3 students.
1 point:1 student.
0 point:1 student.

Problems in Physics of KöMaL, December 2006