· Thermostat : When we switch on the electric iron current flows throught the heating coil. The heat in the heating coil causes expansion in the thermostat which gradually disconnects the supply. · Heating Coil : a coil made of metal so when electricity flows through it‚ it gets hot and it transferes this heat to the sole plate. · Sole plate : it’s a a flat triangular surface cast of aluminium coated with a non-stick PTFE or stainless steel. It’s heated and press clothes to remove creases. ·
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centimeter based on a calculation for a single Nano wire.. Advantages of the Nano generators are small size‚ efficient‚ large scale production and portable. By converting mechanical energy from body movement‚ muscle stretching or water flow into electricity‚ these "Nano generators" can make it possible to emerge into a new class of self-powered implantable medical devices‚ sensors and portable electronics. There is no
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that it is a resistant material that will slow electric current down‚ therefor‚ it will produce heat and some light. I think that the more nichrome wire that we use the ampere will be lower‚ I think that is because the longer the wire is‚ the more electricity that the wire will slow down. Apparatus - Power Supply - Wires (Leads) - Alligator Clips - Ammeter - Nichrome Wire (20 Gauge)-(different length) (2 cm‚ 4 cm‚ 6 cm‚ 8 cm‚ 10 cm) Method 1. Set up the power supply. 2. Connect the ammeter and
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When Gustav Robert Kirchhoff’s banker questioned the financial unreliability that would result from Mr. Kirchhoff investing his hard-earned gold in Fraunhofer lines‚ Kirchhoff handed him the medal he had earned from his research and replied “Look here‚ I have succeeded at last in fetching some gold from the sun.” Despite how phenomenally sassy this quote makes him appear‚ Kirchhoff lived a quiet life (aside from his incredible scientific contributions‚ of course). Gustav Robert Kirchhoff was born
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A superconductor is a metallic alloy that conducts electricity without resistance‚ below a certain temperature. Once in motion‚ an electrical current will flow in a closed loop within a superconducting material. This is the closest to scientists of a perpetual motion machine. In 1911‚ Heike Kamerlingh Onnes first observed superconductivity. He used mercury and cooled to four degrees Kelvin. When the mercury reached that temperature‚ the resistance disappeared. That meant that the electrical current
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INTRODUCTION Electricity is one of the basic needs of every individual especially in this “digital” era wherein technology has taken place. It is important in houses‚ streets‚ mini-stores up to big companies. With it‚ we enjoy lighting for our home‚ and heat and cooling to keep ourselves comfortable‚ and access to the countless appliances that make our lives better. By powering television and computers‚ it keeps us in touch with the outside world‚ and by powering alarms and security systems‚ it
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known the means of holding hands together then pushing the button that take part as the sign that the electricity will flow. As the two persons standing beside that equipment push the button‚ those persons including other people who hold their hand will be grounded. The reason why this scenario happens‚ since human is a conductor of electricity‚ then if they hold hands together‚ the electricity will flow through them. That equipment is my favorite among all devices I saw in the exhibit. Another
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Nikola Tesla was the most underappreciated scientist of all time. In spite of his lack of funding‚ trust‚ and support; Tesla was one of the most successful inventors that the world has ever seen. From AC generators to wireless transmission of electricity to invisible death rays; Tesla envisioned countless world changing inventions. With proper funding and support‚ we can only speculate how many more theories he would have successfully tested. The Amazing Nikola Tesla Technology has exponentially
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Neeru2012-10-23T12:15:00 CLASS 10 ELECTRICITY 1. How much current will an electric heater coil draw from a 220 volt line‚ if the resistance of the heater coil is 40? (1 Mark) (Ans) Given‚ R= 40‚ V=220 V We have the relation‚ I = V/R = 220/40 = 5.5 A 2. What is electric current? (1 Mark) (Ans) The rate of flow of charge per unit time through a conductor is called electric current. 3. What is the SI unit of electric current? (1 Mark) (Ans) The SI unit of electric current is ampere
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through a conductor of resistance R (Ω) for a given time t. [1] Although electric resistance heating converts nearly 100% of the electricity to heat‚ the overall process is still inefficient since the electricity is usually produced from oil‚ gas‚ or coal generators that convert only about 30% of the fuel’s energy into electricity. [2] Due to the energy loss in electricity generation and transmission‚ electric resistance heating is often more expensive than heat produced using combustion appliances
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