{"product_id":"transistor-as-a-switch","title":"Transistor as a switch","description":"One of the most common uses for transistors in an \u003cstrong\u003eelectronic circuit\u003c\/strong\u003e is simple switches. In short, a transistor conducts current across the collector-emitter path only when a voltage is applied to the base. When no base voltage is present, the \u003cstrong\u003eTransistor as a switch \u003c\/strong\u003eis off. ie no current can flow from the collector to the emitter. Now as the base current starts flowing, the Collector and Emitter get connected and a complete current path is provided and the current starts flowing from the collector to the emitter, and obviously, the LED gets turned on.\u003cbr\u003e\u003cbr\u003eIn the \u003cstrong\u003eTransistor as a switch circuit\u003c\/strong\u003e we have used an LED in series with the collector and emitter so that whenever the current flows from collector to emitter, the LED glows. To provide a voltage at the base, we have used a momentary switch S2. Whenever we press the switch S2, the base of the transistor gets connected with the input power supply via a resistor R2. Here R2 is used to prevent excess current flow.\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003ePhysical Attributes\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003eDimensions (cm) L x W x H : 20 x 15 x 5\u003c\/li\u003e\n\u003cli\u003eWeight (gm): 200\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eProduct Video\u003c\/h3\u003e\n\u003cdiv id=\"p_video\"\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/zID42aUvCnM\" height=\"400\" width=\"800\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv id=\"p_video\"\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/ksfNm8ypTxs\" height=\"400\" width=\"800\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"KitsGuru","offers":[{"title":"DO IT YOURSELF","offer_id":40708893737141,"sku":"LGSK011","price":129.0,"currency_code":"INR","in_stock":true},{"title":"READY TO USE","offer_id":40708893802677,"sku":"LGSK011_R","price":249.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/2130\/4757\/products\/transistor-as-a-switch-project.jpg?v=1634633975","url":"https:\/\/kitsguru.com\/es\/products\/transistor-as-a-switch","provider":"KitsGuru","version":"1.0","type":"link"}