0213 A |300 Ω | Conclusion Questions: ( ½ pt each) 1. Incandescent light bulbs have a very thin filament that glows when hot. Thin filaments have very / low resistance. 2. The 12V battery in your car operates a 25 amp car stereo. What is the resistance of this stereo system? _0.48 Ω ___ 3. A “2D” Maglite flashlight runs on 3.0V. What is the current through the bulb if resistance is 15 Ω ? _.20 amps____ 4. How many volts must an iPod charger provide to charge
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.0058 A 430 Ω 6.9V .069 A 100 Ω 6.4 V .0213A 300 Ω Conclusion Questions: ( ½ pt each) 1. Incandescent light bulbs have a very thin filament that glows when hot. Thin filaments have very LOW resistance. 2. The 12V battery in your car operates a 25 amp car stereo. What is the resistance of this stereo system? __0.48 ohms___ 3. A “2D” Maglite flashlight runs on 3.0V. What is the current through the bulb if resistance is 15 Ω ? __0.2 amps__ 4. How many volts must an iPod charger provide to charge
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garden. We have also replaced a large number of our incandescent lightbulbs with fluorescent bulbs. The cost of these bulbs has come down to the point where they are now very cost effective and they consume much less energy. They screw into your light fixtures like a traditional bulb and last up to 13 times as long. The bulbs you can buy today are much higher quality than in the past with less flicker and with a warmer light. Because an incandescent bulb wastes as much as 90% of its energy as heat‚ the
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exacerbate the greenhouse effect and exhausted the earth energy. people crazy mining coal to generate electricity‚ harmful gas and dust and coal combustion has aggravated the earth’s atmospheric pollution‚ incandescent invented by Edison let us get rid of the fear at dark night‚ at the same time the bulb surface containing a small amount of mercury and other toxic metals cause two pollution of water and soil and atmosphere‚ human have been aware that the earth’s environment is more and more limit. Low
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the European Union’s decision old incandescent bulbs are leaving shops forever starting from September first. I will remind you that from 2009 august 31 European union launched a law forbidding old light bulbs of 15‚ 25‚ 40‚ 60‚ 75 and 100 Wats from being sold at all in the European union countries‚ and now they are leaving our shop once and for all. It’s hard to believe that Edison’s light bulb is useless now due it’s big energy waste considering the new bulbs implemented in our daily lives.
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I’m a current board member of the Home Owner’s Association. I’m here to educate all of you on Energy Conservation and why it’s so important to help do our part. First energy is so important because the human population depends upon energy to light out homes‚ cook food‚ grow food‚ warm and cool our homes during the seasons. World energy consumption is on the rise ever year mostly in developing countries‚ but we can do our part to help through energy efficient appliances‚ home insulation‚ and
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Thomas Edison Imagine a world without light being produced by light bulbs. This would be the world we would be living in‚ had it not been for one scientist who made all the difference: Thomas Edison. Great inventor and scientist‚ Edison shed light on the world. Thomas Edison was born February 11‚ 1847‚ in Milan‚ Ohio. He was one of seven children‚ him being the seventh and last. During his school days‚ his mind wandered. This was probably one reason why his teachers called him “addled”. Another
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How to save energy at Home by Sivam in Home / Interior Design 1. Turn your refrigerator down. Refrigerators account for about 20% of Household electricity use. Use a thermometer to set your refrigerator temperature as close to 37 degrees and your freezer as close to 3 degrees as possible. Make sure that its energy saver switch is turned on. Also‚ check the gaskets around your refrigerator/freezer doors to make sure they are clean and sealed tightly. 2. Set your clothes washer to the warm
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cost through energy savings. 3. Change Your Light Bulbs One of the least expensive and most effective changes you can make in your home is replacing your light bulbs. According to Energy Star‚ one of its qualified compact fluorescent light bulbs (CFL)‚ which cost just a few dollars‚ “will save about $30 over its lifetime and pay for itself in about 6 months. It uses 75 percent less energy and lasts about 10 times longer than an incandescent bulb.” Although some people are concerned because CFLs
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It is difficult to imagine a world where certain groundbreaking inventions such as the light bulb‚ electrical currents‚ the computer‚ or the automobile were never created or pursued. Without the inventions that built our world‚ I would not be able to type this argument in my well-lit‚ heated bedroom on my personal laptop computer using my wireless internet connection. In The Atlantic’s article‚ “They Made America‚” many inventors and innovators were included in the list of the top 100 people who
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