FREE ELECTRON THEORY Classical free electron theory of metals This theory was developed by Drude and Lorentz and hence is also known as Drude-Lorentz theory. According to this theory‚ a metal consists of electrons which are free to move about in the crystal like molecules of a gas in a container. Mutual repulsion between electrons is ignored and hence potential energy is taken as zero. Therefore the total energy of the electron is equal to its kinetic energy. Drift velocity If no electric
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Copyright © The McGraw-Hill Companies‚ Inc. Permission required for reproduction or display By: Pn. Nurul Ain Harmiza Abdullah Materials Engineering PTT 110 SEMESTER 1 (2013/2014) Foundations of Materials Science and Engineering‚ 5th Edn. in SI units Smith and Hashemi Copyright © The McGraw-Hill Companies‚ Inc. Permission required for reproduction or display PowerPoint Lecture Slides for Foundations of Materials Science and Engineering Fifth Edition William F. Smith
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primary aluminium in Asia Garments – No.1 in viscose staple fibre production in the world. Fifth largest producer of acrylic fibre in the world. Carbon Black – No.1 producer of carbon black in the world . Insulators – Fourth largest producer of insulators in the world. Cement – Among the top 10 cement producers globally. Mission To deliver superior value to our customers‚ shareholders‚ employees and society at large. How do the justify it? Hindalco‚ Ultratech‚ Idea‚ Louis
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In this assignment it will look to demonstrate the significance of environmental science factors in relation to review of the new building for a College. A report should be produced that aims to assess a number of environmental conditions to ensure an acceptable indoor environment for all teaching accommodation. The College will be reviewed in relation to the built environment in respect of; thermal environment i.e. ventilation‚ without causing excessing air movement and humidity levels and condensation
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off or high resistance to ground‚ when input is high Pin 8 Is connected to the power source of 5V Along with the chip‚ a capacitor was used for this experiment. A capacitor works by storing energy in its two terminals‚ which are separator by an insulator. A positive charge is collected on one plate‚ while a negative charge is collected on the other plate. Capacitor unit of measurement is Farads. In this experiment we also used two resistors. Resistors are used to reduce the voltage applied to
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Effective Logical Fallacy Aristotle‚ in his Rhetoric‚ said that an arguer must state a claim (or a proposition) and prove it. He went into detail about the broad categories of proof and how they are still useful today. Aristotle divides his second category into three subcategories. The Greek words refer to the proof are logos (logic)‚ ethos (credibility)‚ and pathos (emotion). In my discussion‚ I’m going related this to my Solid State Devices class. I have over 30 years’ experience in the installation
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High Specific Heat xiv. Water temps tend to be very stable‚ which is beneficial to aquatic organisms. xv. Heat transfer in mammals l. Boiling and Freezing Characteristics xvi. Ice that forms first acts as an insulator xvii. Useful cooling
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anti – oxidant by getting the extract of lemon grass. The lemon grasses were chopped at the constant size and pressured afterwards and were tested for their physical appearance and effeitinity. After the preliminary test in finding out the best insulator for the making of anti – oxidant out of extract lemon grass. 46 people were tested in different conditions in their body. Every 3 days‚ a batch of 4 280ml bottles of anti – oxidant were released from the researcher‚ tested and observed.After 2 weeks
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Contents 1) Sulphuric Acid----------------------------------------------------------------(1-6) a. Uses of sulphuric b. Manufacture of sulphuric acid c. Sulphur dioxide and environmental pollution 2) Ammonia and Its Salt-----------------------------------------------------(7-10) d. Uses of ammonia e. The properties of ammonia f. Manufacture of ammonia g. Preparation of ammonium fertilisers 3) Alloys------------------------------------------------------------------------(11-14)
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for using anti – oxidant by getting the extract of lemon grass. The lemon grasses were chopped at the constant size and pressured afterwards and were tested for their physical appearance and . After the preliminary test in finding out the best insulator for the making of anti – oxidant out of extract lemon grass. 46 people were tested in different conditions in their body. Every 3 days‚ a batch of 4 280 ml bottles of anti – oxidant were released from the researcher‚ tested and observed.After 2 weeks
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