| Resistance and Electric Circuits | Lab 5 | | | The goal of the “Resistance and Electric Circuit” Lab was to determine the resistivity of a conducting wire given two known resistors. The main property of resistivity is that it represents how easily electrons can flow through a material. A Galvanometer is used to measure the current of the circuit and the Wheatstone Bridge is used to measure the resistances and determine the unknown resistance. This experiment also relates Ohm’s Law
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description of Electric Iron introduction: An electric iron is a small appliance‚a handheld piece of equipment with a flat‚ roughly triangular metal surface that‚ when heated‚ is used to press clothes to remove creases. Ironing works by loosening the ties between the long chains of molecules that exist in polymer fiber materials. With the heat and the weight of the ironing plate‚ the fibers are stretched and the fabric maintains its new shape when cool. description: The electric iron must have
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The test charge at first was attracted but then repelled. 3. After observing the electric field in your trials above‚ where was the electric field the strongest? What was the direction of the electric field? ● Positive charge Upwards 4. Did you notice a green arrow appear as the test charge started to accelerate‚ this arrow represented the electric force! If not‚ take another “shot” at the game above and come back to this question. When was the electric force the greatest? ● Electric force was the greatest when the positive/negative was close to the test charge
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Maria Alexandra Maderal Lincoln Electric Case The Lincoln Electric Company upholds the motto of producing the best quality products at the lowest cost. It is the world’s largest manufacturing company that primarily makes welding products. It has also become one of the world’s leading manufacturers in arc welding equipment since World War II. Lincoln Electric’s organizational culture and philosophy is still strong and consistent and continues to persist. Its strong culture and company philosophy
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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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The Lincoln Electric Case International Strategic Management By: Group 4A Introduction John C. Lincoln founded the Lincoln Electric Company in the year 1895. The first products that the company produced and sold were electric motors that he had designed himself. A Few years later‚ in 1907 his brother James‚ a recently graduate from the Ohio State University‚ joined as a senior manager; He was also the one who would introduce different and very innovative human resource policies
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General Electric Under Jack Welch John Francis Welch‚ Jr.‚ also known as “Jack”‚ became the CEO of General Electric in 1981 and maintained this title for the next 20 years until his retirement in 2001. He was widely known as a “national business hero” because he had a different approach on management that provided increasing results. For this very reason‚ many also despised his tactics. He was very aggressive in cutting out the weak‚ because he believed that it was holding back the company. One
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The electron is a fundamental subatomic particle that carries a negative electric charge. It is a spin-½ lepton that participates in electromagnetic interactions‚ and its mass is less than one thousandth of that of the smallest atom. Its electric charge is defined by convention to be negative‚ with a value of −1 in atomic units. Together with atomic nuclei‚ electrons make up atoms; their interaction with adjacent nuclei is the main cause of chemical bonding. The name "electron" comes from
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How to Make a Simple Electric Motor Energy comes in many forms. Electric energy can be converted into useful work‚ or mechanical energy‚ by machines called electric motors. Electric motors work due to electromagnetic interactions: the interaction ofcurrent (the flow of electrons) and a magnetic field. Problem Find out how to make a simple electric motor. Materials Needed D battery Insulated 22G wire 2 large-eyed‚ long‚ metal sewing needles (the eyes must be large enough to fit the wire through)
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The History of the Electric Guitar The desire to increase the sound of the guitar existed long before the development of electrical amplifiers and speakers. Musical performances in the 19th century were characterized by ever-larger concert settings and ensembles. Musicians needed louder and more powerful instruments‚ which became possible by using new materials and designs. The introduction of steel strings in the 19th century meant not only greater volume‚ but greater tension on instruments
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