{"id":122639,"date":"2015-09-08T02:00:00","date_gmt":"2015-09-07T23:00:00","guid":{"rendered":"http:\/\/www.fyysika.ee\/?guid=2b2e4e455968cb3be29e02d5ff3635e7"},"modified":"2015-09-08T02:00:00","modified_gmt":"2015-09-07T23:00:00","slug":"on-the-applicability-of-amperes-law","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=122639","title":{"rendered":"On the applicability of Amp\u00e8re\u2019s law"},"content":{"rendered":"<p>We point out that in the course of application of Amp\u00e8re\u2019s law it is important to fulfil the<br \/>\ncondition of continuity. We emphasize the role of the displacement current in the case of non-closed<br \/>\ncircuits. As a didactical example the magnetostatic field generated by the current of a<br \/>\nfinite-length straight wire is analysed. It is shown that in order to apply Amp\u00e8re\u2019s law one needs<br \/>\nto (a) complete the scheme with the necessary appearance of displacement currents, or (b) ensure the<br \/>\ncontinuity at the singularities by numerous infinite-length straight wires. Supplements are also<br \/>\nadded to the standard method when the magnetostatic field of a solenoid is calculated via Amp\u00e8re\u2019s<br \/>\nlaw.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We point out that in the course of application of Amp\u00e8re\u2019s law it is important to fulfil the<br \/>\ncondition of continuity. We emphasize the role of the displacement current in the case of non-closed<br \/>\ncircuits. As a didactical example the magnetostatic f&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[178],"tags":[],"class_list":{"0":"post-122639","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-rss-fuusikaharidus","7":"entry"},"_links":{"self":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/122639","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=122639"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/122639\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=122639"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=122639"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=122639"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}