P. 4020. A physicist works in a laboratory where the magnetic induction is 5 mT. She wears a golden necklace which encloses an area of 0.02 m2, and which has a resistance of 0.01 . What is the maximum of the current that flows in the necklace if the the magnetic induction decreases uniformly to 1 mT in 1 ms?
Deadline expired on 11 December 2007.