A straight bar magnet is initially 4 cm long, with the north pole on the right and the south pole on the left. If you cut the magnet in half, the right half will A. no longer contain any poles. B. contain only a north pole. C. contain only a south pole. D. contain a north pole on the right and a south pole on the left.
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A straight bar magnet is initially 4 cm long, with the north pole on the right and the south pole on...
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