{"id":19182,"date":"2024-04-15T05:36:04","date_gmt":"2024-04-15T05:36:04","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=19182"},"modified":"2024-04-15T05:36:04","modified_gmt":"2024-04-15T05:36:04","slug":"at-room-temperature-an-intrinsic-silicon-crystal-acts-approximately-like-a-a-battery-b-a-conductor-c-an-insulator-d-a-piece-of-copper-wire-e-none-of-the-above","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/at-room-temperature-an-intrinsic-silicon-crystal-acts-approximately-like-a-a-battery-b-a-conductor-c-an-insulator-d-a-piece-of-copper-wire-e-none-of-the-above\/","title":{"rendered":"At room temperature an intrinsic silicon crystal acts approximately like A. a battery B. a conductor C. an insulator D. a piece of copper wire E. None of the above"},"content":{"rendered":"<p>[amp_mcq option1=&#8221;a battery&#8221; option2=&#8221;a conductor&#8221; option3=&#8221;an insulator&#8221; option4=&#8221;a piece of copper wire E. None of the above&#8221; correct=&#8221;option3&#8243;]<!--more--><\/p>\n<p>The correct answer is C. an insulator.<\/p>\n<p>An intrinsic semiconductor is a semiconductor in its purest form, with no intentional impurities. The number of charge carriers is equal, therefore the material is electrically neutral. At room temperature, intrinsic silicon has an electrical resistivity of about 10^14 \u00ce\u00a9-cm, which is about 1000 times greater than that of copper. This means that silicon is a very poor conductor of electricity.<\/p>\n<p>A battery is a device that converts chemical energy into electrical energy. It consists of two electrodes, a cathode and an anode, and an electrolyte. The cathode is the electrode where oxidation occurs, and the anode is the electrode where reduction occurs. The electrolyte is a substance that allows ions to flow between the electrodes. When a battery is connected to a circuit, the electrons flow from the anode to the cathode, creating an electric current.<\/p>\n<p>A conductor is a material that allows electricity to flow through it easily. Conductors have a large number of free electrons, which are electrons that are not bound to any particular atom. These free electrons can move freely through the material, carrying an electric current. Copper is a good conductor of electricity.<\/p>\n<p>A piece of copper wire is a conductor. It is made of copper, which is a good conductor of electricity. Copper wire is used in many electrical applications, such as wiring in homes and businesses.<\/p>\n<p>None of the above is not the correct answer.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;a battery&#8221; option2=&#8221;a conductor&#8221; option3=&#8221;an insulator&#8221; option4=&#8221;a piece of copper wire E. None of the above&#8221; correct=&#8221;option3&#8243;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[682],"tags":[],"class_list":["post-19182","post","type-post","status-publish","format-standard","hentry","category-electronic-principles","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>At room temperature an intrinsic silicon crystal acts approximately like A. a battery B. a conductor C. an insulator D. a piece of copper wire E. 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