Two long identical bar magnets are placed under a horizontal piece of paper, as shown in the figure above. The paper is covered with iron fillings. When the two north poles are a small distance apart and touching the paper, the iron filings move into pattern that shows the magnetic field lines. Which is the following best illustrates the pattern that results?
(GR0177 #07)
Solution:
(A) and (C) FALSE
(D) FALSE
It could be right if there is a current through the magnets.
(E) FALSE
No magnetic monopoles
Answer: B
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