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Sometimes people use magnets to keep the doors open and some times to close the doors firmly. Think and say how is it possible and how we should arrange

the magnets in each case


If we want to keep the door open then keep the magnets of the same poles face to face and if to keep the door closed keep the magnets of the different poles face to face.
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To keep it open magnet should be fixed behind the door and to keep it closed it should be places in the front part of the door
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