Mathematical and Physical Journal
for High Schools
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Problem P. 4127. (January 2009)

P. 4127. A battery of electromotive force 6 V and of internal resistance 8 \Omega and a rechargeable battery of e.m.f. 6 V and of negligible internal resistance are connected in series.

a) What is the resistance of the resistor which is to be connected to the system in order to measure a voltage of 6 V across it?

b) What is the terminal voltage across the battery in this case?

(4 pont)

Deadline expired on February 11, 2009.


Statistics:

112 students sent a solution.
4 points:71 students.
3 points:8 students.
2 points:20 students.
0 point:6 students.
Unfair, not evaluated:7 solutions.

Problems in Physics of KöMaL, January 2009