Arc Welding • Welcome to the world of WELDING What is Arc Welding? An electric arc between the and electrode and the work piece generates heat. Sufficient heat is generated to melt the work pieces together. ELECTRODE ARC WORK PIECES Electricity The range of welding current used can be from 5 to 500 amps. The voltage ranges from 20 to 30 volts‚ AC or DC. Both are determined by the material thickness. A 60 watt light bulb draws .5 amps. Four Common Types of Welding •Stick SMAW (shielded
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The Importance of Electricity As long as the electricity is available‚ no one thinks much about it. The importance is realized when the power goes out. Whether it’s during the day or at night‚ electricity keeps our lives in order. It affects your business‚ your schedule and even your entertainment. Electricity runs everything in our everyday life. Gas stations can’t pump gas without it. Businesses have to close because their cash registers won’t work without it. Restaurants can’t cook food without
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ELECTRICAL CONDUCTORS A conductor is an object or type of material which permits the flow of electric charges in one or more directions. For example‚ a wire is an electrical conductor that can carry electricity along its length. Physics All conductors contain electrical charges‚ which will move when an electric potential difference (measured in volts) is applied across separate points on the material. This flow of charge (measured in amperes) is what is meant by electric current. In most
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Ryan Gemmell ENG201 – 12pm Nikola Tesla (1856 - 1943) Growing up in America‚ most children will learn about the history of electricity‚ telephones‚ engines‚ and other mechanical inventions. Almost everybody has heard of Benjamin Franklin and his discovery using lightening and a kite‚ Thomas Edison manufacturing the first plausible indoor light bulb‚ and other revolutionary discoveries. Unfortunately‚ here in the US‚ a Belgian mastermind that helped to shape the modern technological world is quite
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Many of us don’t consider electricity a luxury. There are many nights when I fall asleep with the lights on‚ unable to force myself to get out of bed. Besides‚ it’s nearly 4am – two more hours and I will have to be up anyways‚ so I’ll shut the light off then. How It’s Made: The SOCCKET I’m also guilty of leaving the T.V. on‚ long after I’ve already lost interest in whatever program I was watching. I refuse to unplug my phone and laptop chargers from their sockets because it would be a hassle
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For our project we decided to disassemble and understand a Memphis 1 Channel Mono Block Amplifier. First we started by disassembling the amp down to the main circuit board. From there we assigned ourselves different components to understand what they were and how they worked inside the amp. We all researched our components and got back together to discuss and figure out the flow of power and operations of the amp worked. A general idea of what the amp does is as follows. Power comes into the inputs
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Measuring the Resistivity of Copper Wire of Different Lengths In this report I will be writing about the experiment I will conduct on copper wire of different lengths. The dependent variable I will be measuring is the resistance of the Copper wire. To do this experiment‚ one needs to obtain measurements with a high degree of accuracy‚ taking care of the equipment they use and measuring each value to a certain degree of accuracy for all results. The problem with measuring the resistivity of Copper
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Nikola Teslas Greatest Inventions Randee Harrison Com/172 March‚ 24‚ 2014 Amy Hankins Nikola Teslas Greatest Inventions Nikola Tesla was one of the greatest inventors of the 19th and 20th centuries. Nikola Tesla was born in Smiljan‚ a village in Croatia. This was also where he had attended middle school. Tesla continued his education at the Polytechnic Institute (a college that offered general education courses) in Graz‚ Austria. Tesla later completed his education at The University of Prague
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1. Wavelength of short ultraviolet radiation is: A. 700-1500 mµ B. 1600-12‚000 mµ C. 0.1-3 mm D. 180-290 mµ 2. Wavelength of long ultraviolet radiation is: A. 700-1500 mµ B. 290-400 mµ C. 180-290 mµ D. 0.1-3 mm 3. What ultraviolet wavelength will produce reticuloendothelial stimulation? A. 2600-2700 Å B. 2700-3000 Å C. 2900-4000 Å D. 2400-2500 Å 4. The magnitude of radiation flux at any particular point of the skin depends upon the: A. Cross-sectional diameter of the
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COMPANY PROFILE GFC Fans is one of the largest manufacturers of quality electric fans in Pakistan. GFC‚ under the leadership of Mr. Mohammad Ilyas‚ its CEO‚ has also been the pioneer in the expert of electric fans from Pakistan. Starting with its first commercial export in 1993‚ with a modest quantity & value‚ GFC is now exporting its products to the tune of US$ 12 million annually to more than 30 countries in the World. GFC fans became an instant success due to their quality and durability
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