the PhET Simulation Electricity‚ Magnets‚ and Circuits Resistance in a Wire. As wire length (cm) increases‚ the resistance (Ω) _increases________________ As wire area (cm2) increases‚ the resistance (Ω) _____decreases_____________ As wire resistivity (Ωcm) increases‚ the resistance (Ω) ____increases___________ Procedure Part II: Ohm’s Law: Electricity‚ Magnets‚ and Circuits Ohm’s Law mA is milliamps‚ and ___1000______ milliamps equals one Ampere. • Move the potential (volts) and resistance
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_____________________________CORRTECH CATHODIC PROTECTION FOR PORT FACILITIES _____________________________CORRTECH Contents • • • • • • What causes corrosion What is CP and how does it work? Galvanic vs. impressed current Electrolytes (or where can I use CP) Marine applications Condition assessments _____________________________CORRTECH What is Corrosion? Corrosion is defined as the degradation of a material due to a reaction with it’s environment. Metals require energy to process
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Will the Space Elevator ever be a reality? Tim Engstrom The Cost of Space The cost of shipping payloads into space is currently thousands of dollars per kilogram[1]. Rockets are used for this job‚ subjecting the cargo to severe changeable g-forces‚ generating extreme pollution. The cost of launching a satellite by rocket is typically between $50 million and $400 million dollars[2]. Geosynchronous orbits at 35‚786 km are significantly more expensive to achieve than Low Earth orbits at less than
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Experiment #17 Classification of Chemical Substances Prepared for: Dr. Robert O’Reilly By: Kudaibergenov Baizak 20.11.2013 Nazarbayev University Introduction While many thousands of substances are known‚ they can be classified into a few simple categories based on type of bonding that exists among the atoms in the substance. Bonds are chemical forces that hold atoms together to form molecules or compounds. These categories are ionic‚ molecular and metallic substances.
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in three ways: V = I × R or I =V/R or R = V/I The resistance (R) of a material depends on Its length‚ cross-sectional area‚ The resistivity‚ and Resistance also depends on temperature‚ usually increasing as the temperature increases. For reasonably small changes in temperature‚ the change in resistivity‚ and therefore the change in resistance‚ is proportional to the temperature change. Circuits consisting of just one battery and one load resistance are very simple
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CMOS Fabrication Technology CMOS Fabrication Technology Contents 1. Introduction 2. Fabrication Process Flow - Basic Steps 2.3. The CMOS n-Well Process 4. Advanced CMOS Fabrication Technologies Twin-Tub (Twin-Well) CMOS Process Silicon-on-Insulator (SOI) CMOS Process Butterfly’s Page 1 CMOS Fabrication Technology CMOS Fabrication Technology 1. Introduction In the MOS chip fabrication‚ special emphasis needs to be laid on general outline of the process flow and on the interaction
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Purpose 1. Experiment with a single resistor circuit. 2. Analyze how one variable affects another while the third variable is kept constant. Provide reasoning to support Ohm’s Law by collecting data to interpret and analyze a graph and write a three-step conclusion. Procedure: 1. Go to the University of Colorado – Simulations. Click on the Battery-Resistor Circuit simulation‚ then click on Run Now! 2. Using the information from “Think About This”‚ hypothesize the relationship between
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Resistance: open the PhET Simulation Electricity‚ Magnets‚ and Circuits Resistance in a Wire. As wire length (cm) increases‚ the resistance (Ω) _____increases_____ As wire area (cm2) increases‚ the resistance (Ω) _______decreases_______ As wire resistivity (Ωcm) increases‚ the resistance (Ω) ____increases______ Procedure Part II: Ohm’s Law: Electricity‚ Magnets‚ and Circuits Ohm’s Law mA is milliamps‚ and 100) milliamps equals one Ampere. Move the potential (volts) and resistance (ohms) sliders
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calculated. When the resistors are in series‚ the effective length is increased‚ but when they are in parallel the effective area is increased." " ρ is the resistivity of the material: just a constant. See if you can derive the parallel and series addition laws from the relationship at left assuming all the resistors have the same resistivity. 2b What can you do if you need a 35 Ω resistor?" " A. Put one 50 Ω and one 20 Ω resistor in parallel and two 20 Ω resistors in parallel. Then put
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Soil resistivity Tower grounded with metallic hemisphere of radius Generation station neutral grounded with metallic hemisphere of radius Co-axial GIS tube filled with SF6. Outer andd inner diameter 1 2.1 Stationary LLG fault current A phase-to-phase to ground (LLG) fault occurs in the middle of the line‚ i.e. YY/2 km from each sub-station. OHL parameters The theory developed by Carson give the approximate expression for the distance to return conductor as a function of the resistivity of the
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