英文:Every magnet has two magnetic poles, namely the North Pole and the South Pole. The magnetic poles are the parts of the magnet with the strongest magnetism. 同极相斥、异极相吸:当两个磁铁靠近时,相同的磁极(北极与北极或南极与南极)会相互排斥,不...
根据第五段Thetwoendsofamagnetareitspoles.Everymagnethasanorthpoleandasouthpole.Haveyoueverplayedwithtrainsthathavemagnets?Sometimes,youtrytoputtwotraincarstogether,butpushawayfromeachother.Thenyouturnoneofthecarsaround.Thetwocarsattracteachotherrapidly.Whenthetraincarspushaway,twoofthesamepolesarefacingeachother...
Have you ever played with trains that have magnets? Sometimes,you try to put two train cars together, but push away from each other.Then you turn one of the cars around. The two cars attract each other rapidly. When the train cars push away, two of the same poles are facing each ...
PURPOSE: A bearing equipped with magnets having the same magnetic poles is provided to reduce wear of the bearing by minimizing frictional force when the bearing is idly rotated. CONSTITUTION: A bearing(1) has an outer pipe part(3) and an inner pipe part(4). A protrusion(6) is formed ...
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The more domains point in the same direction, the stronger the overall field. Each domain's magnetic field extends from its north pole into the south pole of the domain ahead of it. This explains why breaking a magnet in half creates two smaller magnets with north and south poles. It ...
根据"When the train cars push away,two of the same poles are facing each other.However,if you put the north and south poles together,they will be together immediately."可知,当两个磁铁同极相面对时,它们会推开;然而,如果你把北极和南极放在一起,它们马上就会在一起。因此B项两个北极相对,它们会...
Have you ever played with trains that have magnets? Sometimes, you try to put two train cars together, but push away from each other. Then you turn one of the cars around. The two cars attract each other rapidly. When the train cars push away, two of the same poles are facing each ...
The poles will mostly cancel and potential for magnetic interference is minimal. This way your credit cards and harddrives will be safe in the same pocket. Not that organization requires an excuse. Version 2 of A Stroll Through Possibilities is a cohesive 36 page guide to magnet spheres. ...
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