Wonders of Electricity Electricity is the greatest gift of science to mankind. We have reached a point of our civilization when electricity is used for all purposes. Without it‚ our existence will be impossible. Electricity is a source of energy. It is produced by a battery or a coil of wires or by dynamo machine. It is produced in thermal station and also in hydro-project. There are various wonders of electricity. The most important of all is electric fan and electric light. These two things
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Polygons in our life The importance of polygons would probably relate to the variety of polygon shape often used in the building of modern structures. The triangle‚ for instance‚ is often used in construction because its shape makes it comparatively strong. The use of the polygon shape reduces the quantity of materials needed to make a structure‚ so essentially reduces costs and maximizes profits in a business environment. Another polygon is the rectangle. The rectangle is used in a number of
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Electricity‚ being referred to as one of the primary agents of technological progress (Boylestad‚ 2002)‚ plays a vital role in securing the stability and mobility of the modern civilization in which many societies exist. Through simple observation‚ one can clearly say that electricity‚ indeed‚ lies through almost every aspect of human life in the present-day era‚ and that it has‚ in many levels‚ constantly revolutionized the way things are in the world as people know it. According to World Bank‚
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Electricity generation is the process of creating electricity from other forms of energy. The fundamental principles of electricity generation were discovered during the 1820s and early 1830s by the British scientist Michael Faraday. His basic method is still used today: electricity is generated by the movement of a loop of wire‚ or disc of copper between the poles of a magnet.[1] For electric utilities‚ it is the first process in the delivery of electricity to consumers. The other processes‚ electricity
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CHAPTER - 12 ELECTRICITY HOTS Questions for Practice 1. Name a substance whose resistance almost remains unchanged by increase of temperature. 2. Name two special characteristics of heater coil. 3. A wire of resistance 4 ohms is bent to form a circle. What is the resistance between two diametrically opposite ends? 4. How does the resistance of a conductor change if its temperature is increased? 5. A current of 4A flows in a wire of resistance 60 ohms. Calculate electrical energy consumed in 2 minutes
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off machines when you leave a room (examples include TV’s‚ computers‚ radios‚ stereos‚ video games‚ VCR’s‚ and DVD players). * When you go away on a trip‚ be sure to unplug these same machines because they have stand-by functions that consume electricity even when they are turned off. * Fill your dishwasher efficiently and limit the number of times you run it. * Don’t put furniture and other things in front of heating and air conditioning vents. * Keep doors and windows closed when heat
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I remember before we left for vacation‚ my mom’s eyelashes started to grow back and she was so excited to go out and be able to buy mascara again. My mom fought her way through cancer and now she was able to start living her life normally again and that made me more happy than I had been that past year. My mom deserved that vacation more than anything‚ she was finally able to relax‚ be spoiled‚ and know that everything from there on out was going to be okay. Fast forward to
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triggered an allergic reaction. After all‚ I’ve been allergic to chocolate my entire life. As a child‚ I was forced to watch as my younger brother received a large chunk of my Halloween spoils year after year‚ solely because I couldn’t eat it. I believed I was an anomaly until I met David Kim‚ who shared two major traits with me: our last names and our allergies. As I discovered that day‚ it’s always interesting how life’s circumstances turn out. Sometimes‚ we get the short end of the stick; sometimes
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HAPPINESS for OUR LIFE WHAT IS HAPPINESS: Happiness is thought of as the good life‚ freedom from suffering‚ flourishing‚ well-being‚ joy‚ prosperity‚ and pleasure. Are you truly happy? Do you even know what it means to be happy and what it takes to achieve happiness? These are important questions for anyone who is seeking happiness to ask themselves. I live my life to maintain my own happiness while trying my best to not cause unhappiness to anyone else. If you want to be happy you need to understand
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Electrostatic Field • An electrostatic field is a phenomenon that is very similar to a magnetic field. When an object is electrically charged‚ it creates an electrostatic field. If an object has an excess of electrons‚ then it’s considered to have a negative charge. If an object has fewer electrons than its surrounding environment‚ though‚ it’s considered to be positively charged. Just like with magnetic fields‚ two objects that are oppositely charged will attract each other. This scientific
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