Hiro wants to model the magnetic field of a bar magnet using a shoe box and pipe cleaners. He labels the ends of the shoe box N and S. How should he position the pipe cleaners? Choose three correct answers.
Answer
A
They should form loops outside of the box over the top, bottom, and sides of the box.
B
None should be put inside the box.
C
They should exit the box at N and enter at S.
D
They should exit the box at S and enter at N.
E
They should be put inside the box so the two ends join.
F
They should form loops outside of the box, but over only the sides of the box.