{"id":1294,"date":"2022-05-05T15:00:36","date_gmt":"2022-06-25T11:27:27","guid":{"rendered":"https:\/\/experiments.school\/?post_type=product&p=1294"},"modified":"2022-07-01T10:38:06","modified_gmt":"2022-07-01T08:38:06","slug":"028-capacite-de-charge-dun-barreau-aimante","status":"publish","type":"product","link":"https:\/\/experiments.school\/fr\/produkt\/028-capacite-de-charge-dun-barreau-aimante\/","title":{"rendered":"028 – Capacit\u00e9 de charge d’un barreau aimant\u00e9"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"

Intensit\u00e9<\/span> de <\/span>champ<\/span> d’un<\/span> barreau<\/span> aimant\u00e9<\/span>\u00a0<\/span><\/span>\u00a0<\/span><\/strong><\/h2>\n

Introduction \u00e0:\u00a0<\/span>\u00a0<\/span><\/h2>\n

Intensit\u00e9 de champ, champ magn\u00e9tique, lignes de champ\u00a0<\/span>\u00a0<\/span><\/p>\n

https:\/\/experiments.school\/wp-content\/uploads\/2022\/05\/028-video.mp4<\/p>\n

Mat\u00e9riel:\u00a0<\/span>\u00a0<\/span><\/h2>\n
    \n
  • Aimant en barre\u00a0<\/span>\u00a0<\/span><\/li>\n
  • Vis (ferromagn\u00e9tiques, ferreuses) \/ clous en fer ou en acier avec t\u00eates (longueur 2-3 cm) \/ trombones.\u00a0<\/span>\u00a0<\/span><\/li>\n<\/ul>\n

    Montage et r\u00e9alisation:\u00a0<\/span>\u00a0<\/span><\/h2>\n
      \n
    • \u00a0Accroche une vis apr\u00e8s l’autre \u00e0 l’aimant jusqu’\u00e0 ce que la derni\u00e8re ne tienne plus.\u00a0 <\/span>\u00a0<\/span><\/li>\n
    • \u00a0Teste la capacit\u00e9 de charge de l’aimant \u00e0 diff\u00e9rents endroits, notamment aux p\u00f4les et au centre. <\/span>\u00a0<\/span><\/li>\n
    • \u00a0Fais glisser la cha\u00eene de vis des p\u00f4les vers le centre. <\/span>\u00a0<\/span><\/li>\n<\/ul>\n

      Observe les r\u00e9sultats:\u00a0<\/span>\u00a0<\/span><\/h2>\n
        \n
      • La plupart des vis restent accroch\u00e9es aux p\u00f4les.\u00a0<\/span>\u00a0<\/span><\/li>\n
      • Les vis transmettent l’effet magn\u00e9tique.\u00a0<\/span><\/li>\n
      • En se d\u00e9pla\u00e7ant vers le centre, les vis tombent les unes apr\u00e8s les autres.\u00a0<\/span>\u00a0<\/span><\/li>\n<\/ul>\n

        Conseil:\u00a0<\/span>\u00a0<\/span><\/h2>\n

        Ne pas placer les vis trop pr\u00e8s les unes des autres, sinon elles s’attirent mutuellement.\u00a0<\/span>\u00a0<\/span><\/p>\n

        Explication:\u00a0<\/span>\u00a0<\/span>\u00a0<\/span><\/h2>\n
          \n
        • Le champ magn\u00e9tique et le gradient du champ magn\u00e9tique sont les plus forts aux p\u00f4les. <\/span><\/li>\n
        • Les vis sont ainsi magn\u00e9tis\u00e9es. <\/span><\/li>\n
        • Au centre, les lignes de champ sont perpendiculaires aux vis et ne produisent donc pratiquement aucun effet magn\u00e9tique.<\/span>\u00a0<\/span><\/li>\n<\/ul>\n","protected":false},"featured_media":1296,"template":"","meta":[],"product_brand":[],"product_cat":[988,883],"product_tag":[],"class_list":{"0":"post-1294","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-6-magnetisme-electromagnetisme","7":"product_cat-b-electricite-fr","8":"","9":"woocommerce-text-align-left","10":"woocommerce-image-align-center","12":"first","13":"instock","14":"shipping-taxable","15":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/experiments.school\/fr\/wp-json\/wp\/v2\/product\/1294","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/experiments.school\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/experiments.school\/fr\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/experiments.school\/fr\/wp-json\/wp\/v2\/media\/1296"}],"wp:attachment":[{"href":"https:\/\/experiments.school\/fr\/wp-json\/wp\/v2\/media?parent=1294"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/experiments.school\/fr\/wp-json\/wp\/v2\/product_brand?post=1294"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/experiments.school\/fr\/wp-json\/wp\/v2\/product_cat?post=1294"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/experiments.school\/fr\/wp-json\/wp\/v2\/product_tag?post=1294"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}