is: Resistance Resistance is a property of a DEVICE or a COMPONENT. like a lamp‚ a resistor‚ a thermistor‚ a diode and so on. Its value depends on four things. 1. What it’s made of. Metals are good conductors so have lower resistance than an insulator of the same dimensions. 2. Length – the longer‚ the greater resistance. 3. Area of cross section – the larger the lower. 4. Temperature (metals: higher temperature = higher resistance because the vibration of the metal lattice impedes the drift
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Thermal Expansion Experiment No. 2 *Santos‚ Patricia Mary O. Aquino‚ Junior Emil S. Bautista‚ Jennina Besana‚ Carra Sophiya Lime‚ Jerricson III-32 BSE General Science July 02‚ 2012 Abstract This experiment is done to determine the temperature coefficient of linear expansion of different materials. The different temperature coefficient is obtained through the use of an apparatus for measuring the linear expansion. The PASCO Thermal Expansion Apparatus was use to measure the thermal
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third largest business house. Major companies of Aditya Birla Group in India are Grasim‚ Hindalco‚ UltraTech Cement‚ Aditya Birla Nuvo and Idea Cellular. Aditya Birla Group’s joint ventures include Birla Sun Life (Financial Services) and Birla NGK (Insulators). The group also has its presence in various countries such as Thailand‚ Indonesia‚ Malaysia‚ Philippines‚ Egypt‚ Canada‚ China and Australia. Born on June 14‚ 1967‚ Kumar Mangalam Birla spent the early of his life in Calcutta and Mumbai. He
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Department of Chemical Engineering‚ IIT Delhi POLYIMIDE SUBMITTED TO: Dr. Sreedevi Upadhyayula SUBMITTED BY: Gurdeep Singh Somal 2010CH10078 Gurvineet Singh Dhillon 2010CH10079 Gaurav Singh Sinsinwar 2010Ch10077 Polyimide is a polymer of imide monomers. The structure of imide is as shown. Polyimides have been in mass production since 1955. Typical monomers include pyromellitic dianhydride and 4‚4 ’-oxydianiline. Polyimides are a very interesting group of incredibly strong and astoundingly
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(Line-ground) (open terminals) Substation Bird’s view 400kV Circuit Breaker 400kV Isolator 400kV Current Transformer 400kV CVT 400kV Surge Arrester Shunt Reactor & NGR 400/220 kV Auto Transformer 400kV Bus Post Insulator Wave Trap Functions of substation equipments
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PROJECT IN T.L.E Electronic Components Diodes a diode is a two-terminal electronic component with asymmetric conductance‚ it has low (ideally zero) resistance to current flow in one direction‚ and high (ideally infinite) resistance in the other. A semiconductor diode‚ the most common type today‚ is a crystalline piece of semiconductor material with a p–n junction connected to two electrical terminals. A vacuum tube diode has two electrodes‚ a plate (anode)
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Aim • To calculate the SHC of water • To see how accurately I can measure a known quantity Research Question • Will the experiment carried out give us a good approximation of the SHC of water? Hypothesis • The result we will get as the SHC of water will not be exactly the same as the literature value‚ but will be a very close figure to the literature value of the SHC of water as there will be some limitations to our experiment. Variables Independent: temperature of water Dependent:
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methane‚ nitrous oxide‚ and fluorinated gases like chlorofluorocarbons‚ hydrochlorofluorocarbons‚ and halons. These gasses can take anywhere from a few years to thousands of years to dissipate in the atmosphere. Once released; these gasses act as insulators or blankets that trap these gasses in out atmosphere preventing heat from escaping the atmosphere and forcing temperatures to rise‚ but it doesn’t stop here. As temperatures rise‚ our polar ice caps at both of the poles have lost a significant amount
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Task 1: (P1) Describe the purpose and application of three different types of lubricant: What is Lubrication: Lubrication is a process or technique when a component is having been made smooth and slippery by the application of Lubricant. What is Lubricant: A lubricant is a substance which applies between two moving surfaces to reduce friction between them. E.g. Motor oil‚ Greases‚ Graphite‚ Glasses. Three different types of lubricant and the purpose they serve: Glasses: Glass is used as a Lubricant
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SAFETY IN WELDING A Safe Journey with UNITOR Norwegian Training Center - Manila A SAFE JOURNEY WITH UNITOR Welding and Flame Cutting elsewhere than in workshop should be the subject of a “HOT WORK PERMIT” A Safe Journey with UNITOR 2 Norwegian Training Center - Manila Production welding is done under optimum conditions. The appropriate equipment is provided for and the specification are set. A Safe Journey with UNITOR 3 Norwegian Training Center - Manila Maintenance
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