Mathematical and Physical Journal
for High Schools
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Problem P. 4637. (April 2014)

P. 4637. A chocolate bunny wrapped into aluminium foil is suspended by a piece of insulating chord and is charged. The bunny slowly looses its charge due to the conducting ability of air. During the discharging process, what is the magnetic field around the bunny like? (It can be assumed that the conducting ability of air is the same everywhere.)

(6 pont)

Deadline expired on May 12, 2014.

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

Megoldásvázlat. A mágneses indukció mindenhol nulla. (A mágneses mezőt a levegőben folyó áramok és a Maxwell-féle eltolási áram közösen alakítja ki.)


10 students sent a solution.
6 points:Antalicz Balázs, Fehér Zsombor, Holczer András, Janzer Barnabás, Sal Kristóf.
4 points:3 students.
2 points:2 students.

Problems in Physics of KöMaL, April 2014