accelerated towards the anode by an electric field. A hole in the accelerating anode allows the electrons to pass out of the electron gun and between the two sets of deflection plates. The metallic coating inside the tube shields the right end free of external electric fields and conducts away the electrons after they strike the fluorescent screen where they form a luminous spot. Plates for Plates for vertical Focusing Anode horizontal deflection Accelerating deflection Anode Control Grid Electron
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immersed in an electrolyte. Since different metals have differing electrode potentials‚ when any two metals are in contact and there is an electrolyte present‚ then a galvanic couple is setup whereby one metal acts as a cathode and the other as an anode. The anode dissolves into the electrolyte hence resulting in corrosion and causing damage to structure The culprit for damaging the statue of liberty is “crevice corrosion” because the corrosion only occurs at the contact patch at the junction where the
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An electrochemical cell is also called a voltaic cell‚ which derives electrical energy from redox reaction taking place within the cell. It consists of two different metals that are connected by a salt bridge. Eletrons always flow from anode to cathode‚ where anode is negative (reduction) and cathode is positive (oxidation). A lot of factors may affect the voltage of an electrochemical cell‚ such as the change in concentration of the solutions. INDEPENDENT VARIABLE: Concentration of the CuSo4
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Automatic Street Light [pic] Submitted By: Introduction Automatic Streetlight needs no manual operation for switching ON and OFF when there is need of light. It detects itself weather there is need for light or not. When darkness rises to a certain value then automatically streetlight is switched ON and when there is other source of light i.e. day time‚ the street light gets OFF. The sensitiveness of the street light canal so be adjusted
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2009) Redox reactions are an exchange of electrons between materials. In a redox reaction there is always an anode (electron donor) and a cathode (electron recipient). The exchange of the electrons can be either in a direct process or can be an indirect transfer of electrons along a conductor from the anode to the cathode. Either direct or indirect‚ the corrosion will always occur at the anode. My experiment is aimed at testing the corrosion of 2 different types of nails in a certain molar solution
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pore size so that the larger protein can move in easily. The SDS and heating was used to denature the proteins‚ the proteins then loaded into the lane. When apply the electrical field‚ the proteins will move toward the bottom‚ which is the positive anode. Also‚ the Tris-glycine will enter the stacking gel. The pH of stacking gel is 6.8‚ it makes the proteins less negative because the amino acids are protonated at equilibrium. Because the glycine moves slower than chloride ion‚ a Gly-chloride ion boundary
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mA controls- mA is the number of electrons crossing from cathode to anode (tube current). It is determined by the filament temperature. Filament temperature is controlled by the filament current. As the temperature increases‚ thermionic emission increases. The tube current is controlled by the filament circuit which the
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Lithium Ion Rechargeable Batteries Edited by Kazunori Ozawa Related Titles Mitsos‚ A. / Barton‚ P. I. (eds.) Microfabricated Power Generation Devices Design and Technology 2009 ISBN: 978-3-527-32081-3 Liu‚ Hansan / Zhang‚ Jiujun (eds.) Electrocatalysis of Direct Methanol Fuel Cells From Fundamentals to Applications 2010 ISBN: 978-0-471-68958-4 Sundmacher‚ K.‚ Kienle‚ A.‚ Pesch‚ H. J.‚ Berndt‚ J. F.‚ Huppmann‚ G. (eds.) Molten Carbonate Fuel Cells Modeling‚ Analysis‚ Simulation
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value of Planck’s constant‚ h. Included is a brief introduction to the history leading up to Einstein’s discovery of the photoelectric effect as well as the theory behind it. To determine h‚ multiple intensities of light were shined upon a cathode/anode apparatus and current and stopping potentials were measured. The weighted mean of the two values determined from different light intensities is (4.141 ± .008924) × 10-15 eV∙s‚ which is within .560σ of the world value of h. The independence of electron
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Corrosion is the gradual destruction of materials (usually metals) by chemical reaction with its environment. In the most common use of the word‚ this means electrochemical oxidation of metals in reaction with an oxidant such as oxygen. Rusting‚ the formation of iron oxides‚ is a well-known example of electrochemical corrosion. This type of damage typically produces oxide(s) or salt(s) of the original metal. Corrosion can also occur in materials other than metals‚ such as ceramics or polymers‚ although
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