I mean, it can hold a piece of paper to the door of a refrigerator. How does the magnet stick without touching the door?A. Friction attracts paper to the magnet.B. The magnetic field of the magnet connect at a distance, and influence the metal of the door through the paper. C. The magnet induces in magnetic filled in the paper.d. Gravity attracts the magnet to the door.
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B. The magnetic field of the magnet connect at a distance, and influence the metal of the door through the paper.
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