{"version":"1.0","provider_name":"Universe of Instrumentation","provider_url":"http:\/\/www.edisontc.org\/ui","author_name":"admin","author_url":"http:\/\/www.edisontc.org\/ui\/author\/admin\/","title":"Ammeters - Universe of Instrumentation","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"J0Nj3hUVH6\"><a href=\"http:\/\/www.edisontc.org\/ui\/home\/course\/unit-i\/ammeters\/\">Ammeters<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"http:\/\/www.edisontc.org\/ui\/home\/course\/unit-i\/ammeters\/embed\/#?secret=J0Nj3hUVH6\" width=\"600\" height=\"338\" title=\"&#8220;Ammeters&#8221; &#8212; Universe of Instrumentation\" data-secret=\"J0Nj3hUVH6\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/* ]]> *\/\n<\/script>\n","thumbnail_url":"http:\/\/www.edisontc.org\/ui\/files\/2016\/02\/Unit1Banner900-1a.jpg","thumbnail_width":800,"thumbnail_height":254,"description":"The need to accurately measure the quantity of electricity (amperes) was important since Volta&#8217;s battery in 1800, however it wasn&#8217;t until the moving-coil galvanometer, also known as the PMMC (permanent magnet moving coil) came about in the 1880s. The PMMC was used for both ammeters and voltmeters. We will start by describing ammeters, the men &hellip; Continue reading"}