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.
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.