Mathematical and Physical Journal
for High Schools
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Problem M. 282. (November 2007)

M. 282. By means of a compass measure the magnetic induction of a bar magnet as a function of the distance r measured from the centre of the magnet. The measurements should be carried out along two lines:

a) the longitudinal axis of the bar magnet;

b) perpendicularly to the longitudinal axis.

You may use that the horizontal component of the magnetic induction of the Earth is 2.10-5 T.

(6 pont)

Deadline expired on December 11, 2007.


14 students sent a solution.
6 points:Balogh Máté, Papp Ádám.
5 points:Borák Balázs Sándor, Dobos Dániel, Karsa Anita, Kiss Boldizsár, Lovász Krisztina, Mészáros Benedek, Vida György.
4 points:3 students.
3 points:1 student.
0 point:1 student.

Problems in Physics of KöMaL, November 2007