{"id":32259,"date":"2019-08-27T18:07:54","date_gmt":"2019-08-27T18:07:54","guid":{"rendered":"https:\/\/prepistan.com\/blog\/?p=32259"},"modified":"2019-08-27T18:07:54","modified_gmt":"2019-08-27T18:07:54","slug":"in-_____-decade-were-the-first-successful-diode-and-triode-vacuum-tubes-invented","status":"publish","type":"post","link":"https:\/\/prepistan.com\/blog\/in-_____-decade-were-the-first-successful-diode-and-triode-vacuum-tubes-invented\/","title":{"rendered":"In _____ decade were the first successful diode and triode vacuum tubes invented ?"},"content":{"rendered":"<p>A. 1800s<br \/>\nB. 1880s<br \/>\nC. 1890s<br \/>\n<span style=\"color: #ff0000;\">D. 1900s<\/span><\/p>\n<p><span style=\"color: #3366ff;\">Explanation:<\/span><br \/>\nIn 1904, John Ambrose Fleming invented the first practical electron tube called the &#8216;Fleming Valve&#8217;, which is a diode rectifier. In 1906, Lee de Forest invented the Audion later called the triode, which provided signal amplification.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A. 1800s B. 1880s C. 1890s D. 1900s Explanation: In 1904, John Ambrose Fleming invented the first practical electron tube called the &#8216;Fleming Valve&#8217;, which is a diode rectifier. In 1906, Lee de Forest invented the Audion later called the triode, which provided signal amplification.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[869],"class_list":{"0":"post-32259","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-general-knowledge-mcqs","7":"tag-inventions-gk"},"_links":{"self":[{"href":"https:\/\/prepistan.com\/blog\/wp-json\/wp\/v2\/posts\/32259","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prepistan.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prepistan.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prepistan.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/prepistan.com\/blog\/wp-json\/wp\/v2\/comments?post=32259"}],"version-history":[{"count":0,"href":"https:\/\/prepistan.com\/blog\/wp-json\/wp\/v2\/posts\/32259\/revisions"}],"wp:attachment":[{"href":"https:\/\/prepistan.com\/blog\/wp-json\/wp\/v2\/media?parent=32259"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prepistan.com\/blog\/wp-json\/wp\/v2\/categories?post=32259"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prepistan.com\/blog\/wp-json\/wp\/v2\/tags?post=32259"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}