The north pole of a strong magnet is dragged down an iron nail from the top to the point 50 times. What will most likely happen when the nail is brought near a pile of small paper clips?

Repeatedly stroking the iron nail in one direction with a strong magnet tends to align the nail’s magnetic domains. The aligned domains make the nail act as a magnet, so it will attract and pick up some paper clips. Thus, the nail will pick up some paper clips because its domains have been aligned.

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