Lesson 11. Topic “Heating effect of an electric current”. Grammar material: Articles. Text: “Heating effect of an electric current”. The production of heat is perhaps the most familiar among the principal effects of an electric current‚ either because of its development in the filaments of the electric lamps or‚ may be‚ because of the possible danger from overloaded wires. As you know‚ of course‚ a metal wire carrying a current will almost always be at a higher temperature than the temperature of
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In “Pittsburgh Sheep” we measured the temperature of the 10 milliliters of Solution 2. Then we dropped a ball of steel wool into the test tube and measured the temperature again. We stored the test tubes on the test tube rack to observe the next day. A chemical reaction did occur in the lab. There were a color change and an odor change that was observed on Day 2 of the lab. On Day 1‚ the liquid was clear and the smell was very strong. On Day 2 of the lab‚ most of the liquid was gone but the color
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Lincoln Electric Case Study Analysis Overview of the Case of Lincoln Electric Lincoln electric established consistent HRM policies to build trust. This has been true since inception. This long history promotes confidence in employees and surety of future reward. Workers average $17‚600 per year on standard 32 hour work weeks. They are able to earn about this same amount again in bonuses. This system creates high productivity. Lincoln Electric operates on a system of equality‚ cooperation‚ and
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Is the electric car the car the future? The main reason to buy an electrical car is the reduced CO2 emission. Reducing pollution coming from cars is a great way to fight global warming. It’s not only less pollution it also costs less. Each kilometer you drive in an electric car costs considerably less than with a comparable fuel car. The motor of an electric car also has a great advantage point with its speed. Electrical engines have a one gear box motor‚ it doesn’t have to shift gears. This
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you comb it vigorously on a dry‚ cold day? Or how difficult it is to remove dust particles from your comb? Your hair and the comb become charged by rubbing. This stationary electric charge is described as static electricity. Activity 1. Rub a plastic sheet with flannel and then hold the plastic sheet near Styrofoam bits. What do you observe? From the observations made‚ you can conclude that rubbing produces static electricity on the rubbed objects. The two objects‚ when rubbed against each other‚
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Awarded the most admirable company six times in the past few decades by Fortune‚ General Electric (GE) is obviously a very successful company. However‚ they were caught up in a trap of handing their CEOs a ridiculous amount of money like many other large corporations. According to one article from “Competition Forum” called Executive Compensation: The Case of General Electric by Nwabueze‚ Scott‚ Horak‚ and Chhotu‚ new management came in the form of Jeffrey Immelt in 2003 and changes were made.
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Best Electric Scooters Reviews in 2017 - Be Always On Time Every now and then you have to travel a distance that is too short to take the bus for but too long to walk. An electric scooter is a good ride of choice in such cases. Electric scooters are compact‚ environmentally friendly‚ and easy to use. You just charge them and you are good to go. While they are undoubtedly cheap compared to electric cars‚ naturally you still want to get the most out of each penny. To make shopping easier for you
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Riordan Electric Fan Proposal Riordan Electric Fan Proposal Olla S. Bartlett‚ Darjae Johnson‚ Thomas Williams University of Phoenix OPS/571 22 March 2012 Mahesh Singh Riordan Electric Fan Proposal Riordan Manufacturing manufactures many different plastic items ranging the gambit from medical devices‚ to bottles to electric fans. In the last year the Hangzhou plant has averaged 93% in its on-time deliveries (Apollo Group Inc.‚ 2012). This proposal package will detail
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In 1996‚ electric cars began to appear on roads all over California. They were quiet and fast‚ produced no exhaust and ran without gasoline........... Ten years later‚ these futuristic cars were almost completely gone." ’Who Killed the Electric Car’ is a documentary which unfolds a complex set of events around the development and demise of the modern electric car. The story stems from California from the early 1990s to 2006. Chris Paine‚ the film maker has woven together interviews and archival
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Magnetic effect of electric current is one of the major effects of electric current in use‚ without the applications of which we cannot have motors in the existing world. A current carrying conductor creates a magnetic field around it‚ which can be comprehended by using magnetic lines of force or magnetic field lines. The nature of the magnetic field lines around a straight current carrying conductor is concentric circles with centre at the axis of the conductor. The direction of the magnetic field
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