TECHNOLOGY BASICS: 1) What are the main components of an X-ray Tube? The x-ray tube consists of an electrode pair - a cathode and an anode. The cathode is a negatively charged heated filament made from tungsten. The anode is a positively charged flat disc‚ also made from tungsten. The electrode pair sits inside a glass vacuum tube‚ which is lined with lead for protection. 2) State the two interactions that occur in the X-ray tube to produce the x-ray beam Bermsstralhung interaction and Characteristic
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EE3092 – Laboratory Practice V Thyristor Switch Application Instructed by: Name : K.P.A.I.Perera Index No. : 100385H Course : BSc. Engineering Group : Group 09 Date of Per : 26/06/2013 Date of Sub : 17/07/2013 OBSERVATION SHEET Name : K.P.A.I.Perera Index No. : 100385H Course : BSc. Engineering Group : Group 09 Date of Per : 26/06/2013 Date of Sub : 17/07/2013 Instructed By : a) DC switch opening and closing by means of
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Hydrogen Fuel Cells There are many reasons to look for new cleaner forms of energy. Fossil fuels‚ being non-renewable‚ will eventually run out. Pollution from burning fossil fuels destroys our environment. Hydrogen fuel cells could be used many places where fossil fuels are currently being used. Using hydrogen as a form of energy can not only reduce our dependence on imported oil‚ but also benefit the environment by reducing emissions of greenhouse gases and pollutants that affect our air quality
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Aluminium The history of Aluminium use Aluminium is now one of the most widely used metals‚ but one of the hardest to refine due to it’s reactivity with other elements. Even as late as the turn of the century‚ Aluminium was considered very valuable and in turn expensive‚ even more expensive than gold. In some cultures‚ when a function was held (for example‚ a party) by wealthy people‚ only the most honored guests would be given Aluminium cutlery‚ the others had to make do with gold or silver cutlery
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URANIUM TALENT SEARCH EXAMINATION(UTSE) - 2011 (CBSE/ICSE) Time: 60 minutes(11 am - 12 noon) Class- IX F.M - 180(+3/-1 system) Declaration of Result in the internet(www.theuranium.org) : 15.03.2011 (There are 60 MCQs and each has one correct answer. You are required to darken the appropriate circle in the OMR answer sheet with the help of a HB pencil. Eraser can be used to change any answer. Note that improper darkening will make your answer sheet invalid by the computer. 3 marks will be given
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.C. is committed to supporting business and investing and has developed numerous valuable resources for business owners and investors at various stages in their endeavours. Learn about these resources and how you can make the most out of your opportunities. Business Management Thinking of starting a business but not sure where to stThe Ksp expression is A. Ksp = Sr2+ [ ]3 PO4 3− [ ]2 B. Ksp = 3Sr2+ [ ] 2PO4 3− [ ] C. Ksp = 3Sr2+ [ ]3 2PO4 3− [ ]2 D. Ksp = 3Sr2+ [ ]3 2PO4
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Self Heating Food and Drink Cans Heater meals – originally developed for military use – are ready-made self-heating meal packs. They can be heated in many ways – by pressing a button on the packaging‚ unwrapping and shaking the pack‚ or pouring the contents of one bag into another and waiting for a few minutes – all of which use exothermic chemical reactions. These meals can be used to motivate students to study such reactions relatively safely and without the use of a burner. Plus there is the
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following reaction takes place: Oxidation: Zn(s) Zn+2 + 2e-1 Reduction: Cu+2 + 2e-1 Cu Overall: Zn(s) + Cu+2 Zn+2 + Cu(s) The salt bridge is necessary to complete the circuit and maintain charge neutrality. Zn+2 cathode SO4-2 anode Measuring the strength of oxidizing and reducing agents – standard electrode potentials provide direct measure of the relative oxidizing and reducing agents. It is important to remember that the more positive the value of e.m.f‚ the more energetically
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energy. Our body tissues consist mainly of smaller atoms so x-ray photons are not absorbed. The bones in our body‚ however‚ consist of calcium atoms (which are much larger) and are able to absorb the energy. X-ray photons are created by cathodes and anodes within the machinery. The machinery is surrounded by a lead shield which prevents X-ray photons to escape. There is a small window which allows x-ray photons to escape in a very narrow beam. On the other side of the patient‚ there is a camera which
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Electroplating shop: Electroplating is primarily used for depositing a layer of material to bestow a desired property to a surface that otherwise lacks that property. Mainly electroplating is used for the following purposes: * Abrasion * Wear resistance * Corrosion protection * lubricity and * Aesthetic qualities The electroplating shop of Energypac Engineering Limited consists of three sections. i) Seven color section ii) Nickel section iii) Silver section Seven color section:
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