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وصف الفيديو: ماذا يحدث للحقل المغناطيسي عند إلصاق مربع معدني بقطعة مغناطيس. ما سبب حدوث ذلك؟ Description What happens to the magnetic field of the bar magnet when the metal square is attached. Why does this happen? رابط الفديو باللغة الانجليزية: http://www.youtube.com/watch?v=WxgNAsiOXY4