Problem M. 325. (September 2012)
M. 325. Charge a capacitor of known capacitance (e.g. 2200 F) to a given voltage (e.g. 9 V), and then discharge it through a resistor of known resistance (e.g. 47 k). Measure and plot the graph of the voltage across the condenser as a function of the elapsed time. How long does it take for the voltage to decrease to
a) one half;
b) one fourth of its initial value?
Deadline expired on October 10, 2012.
52 students sent a solution. 6 points: Agócs Fruzsina, Barta Szilveszter Marcell, Bodor Gábor, Holczer András, Horicsányi Attila, Kollarics Sándor, Kovács 444 Áron, Olosz Balázs, Sági Olivér, Szabó 262 Lóránt, Szabó 928 Attila, Török Dávid. 5 points: Asztalos Bogdán, Bozóki Zoltán, Csipor János, Garai Zoltán, Garami Anna, Juhász Péter, Károlyi Áron, Nagy Gergely, Szathmári Balázs, Szücs Botond. 4 points: 10 students. 3 points: 7 students. 2 points: 8 students. 1 point: 4 students. 0 point: 1 student.