{"id":112652,"date":"2015-08-11T03:00:00","date_gmt":"2015-08-11T00:00:00","guid":{"rendered":"http:\/\/www.fyysika.ee\/?guid=f1e2eb01755dd1c7ed632603b8fa0925"},"modified":"2015-08-11T03:00:00","modified_gmt":"2015-08-11T00:00:00","slug":"plancks-constant-measurement-by-landauer-quantization-for-student-laboratories","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=112652","title":{"rendered":"Planck?s constant measurement by Landauer quantization for student laboratories"},"content":{"rendered":"<p>A simple experimental setup for measuring Planck?s constant, using Landauer quantization of the<br \/>\nconductance between touching gold wires, is described. It consists of two gold wires with thickness<br \/>\nof ##IMG## [http:\/\/ej.iop.org\/images\/0143-0807\/36\/5\/055047\/ejp517815ieqn1.gif] {$500;mu {rm{m}}$}<br \/>\nand ##IMG## [http:\/\/ej.iop.org\/images\/0143-0807\/36\/5\/055047\/ejp517815ieqn2.gif] {$1.5;mathrm{cm}$}<br \/>\nlength, and an operational amplifier. The setup costs less than $30 and can be realized in every<br \/>\nteaching laboratory in two weeks. The use of an oscilloscope is required.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A simple experimental setup for measuring Planck?s constant, using Landauer quantization of the<br \/>\nconductance between touching gold wires, is described. It consists of two gold wires with thickness<br \/>\nof ##IMG## [http:\/\/ej.iop.org\/images\/0143-0807\/36\/5\/05&#8230;<\/p>\n","protected":false},"author":0,"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-112652","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\/112652","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"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=112652"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/112652\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=112652"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=112652"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=112652"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}