17.04.2015 - 1215-1400 - problems about magnets

http://www.uio.no/studier/emner/matnat/fys/FYS4130/v14/exercise-blog/problem-set-12.pdf

Note: It seems that time is not  good. Please send email to larissa.bravina@fys.uio.no 

with suggestions of new time (and/or dates)