Mathematical and Physical Journal
for High Schools
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Problem P. 4487. (December 2012)

P. 4487. The e.m.f. of an older type of rechargeable battery of a mobile phone is 2.4 V, whilst its capacity to store the charges is 1100 milliampere-hour. How much energy can this battery store?

(3 pont)

Deadline expired on January 10, 2013.

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

Megoldásvázlat. 9,5 kJ.


121 students sent a solution.
3 points:83 students.
2 points:15 students.
1 point:20 students.
0 point:2 students.
Unfair, not evaluated:1 solutions.

Problems in Physics of KöMaL, December 2012