Mathematical and Physical Journal
for High Schools
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I want the old design back!!! :-)

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.


Statistics:

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 solution.

Problems in Physics of KöMaL, December 2012