{"id":253209,"date":"2016-08-01T02:00:00","date_gmt":"2016-07-31T23:00:00","guid":{"rendered":"http:\/\/www.fyysika.ee\/?guid=8618f460dfbb4d39e1bfd28715c680e7"},"modified":"2016-08-01T02:00:00","modified_gmt":"2016-07-31T23:00:00","slug":"preparation-of-graphite-conductive-paint-and-its-application-to-the-construction-of-rc-circuits-onpaper","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=253209","title":{"rendered":"Preparation of graphite conductive paint and its application to the construction of RC circuits on\r\npaper"},"content":{"rendered":"<p>We describe a simple procedure for the preparation of graphite-based conductive paint and determine<br \/>\nits basic transport properties when applied, comparing them to those of pencil strokes. Ohm\u2019s law<br \/>\nwas fulfilled on the applied paint, which makes it an ideal strategy to teach the relations between<br \/>\na resistor\u2019s length, width and resistance. The conductive paint was used in the construction of RC<br \/>\ncircuits on paper in a simple and didactic format. Using only the paint and a piece of cardboard, a<br \/>\ncompletely functional parallel plate capacitor can be constructed with different plate geometries;<br \/>\nin particular, we painted circular and rectangular plates. The charge and discharge cycles of the<br \/>\ntwo RC circuits painted were observed in the oscilloscope. We obtained characteristic times and<br \/>\nestimated the value of the dielectric constant of paper, which serves as a dielectric between the<br \/>\nplates of the capacitors. We found conductive paint to be a useful and easy method to teach basic<br \/>\nelectri&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We describe a simple procedure for the preparation of graphite-based conductive paint and determine<br \/>\nits basic transport properties when applied, comparing them to those of pencil strokes. Ohm\u2019s law<br \/>\nwas fulfilled on the applied paint, which makes it&#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-253209","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\/253209","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=253209"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/253209\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=253209"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=253209"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=253209"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}