There are two iron rods, labeled A and B. When you touch A to a paperclip and lift up, the paperclip sticks to A. When you touch B to a paperclip and lift up, the paperclip does not move. What can you say is true?
a) A's magnetic domains are lined up in more-or-less the same direction.
b) B's magnetic domains are lined up in more-or-less the same direction.
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