Mathematical and Physical Journal
for High Schools
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Problem M. 291. (November 2008)

M. 291. Measure the resistance of a 40 W tungsteen filament lamp at different temperatures. (Between -15 oC and +40 oC.) Determine the temperature coefficient of the resistance. It is advisable to use a digital ohmmeter. Do not use the mains power (220 V AC).

(6 pont)

Deadline expired on December 11, 2008.


16 students sent a solution.
6 points:Balogh Máté, Gulyás Máté, Karsa Anita, Szabó 895 Dávid.
5 points:Dobos Dániel, Farsang István, Maknics András.
4 points:5 students.
3 points:2 students.
2 points:2 students.

Problems in Physics of KöMaL, November 2008