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(a) To what temperature (in °C) must you raise a copper wire, originally at 20.0°C, to...
5. 0/10 points Previous Answers OSCIPhys2016 20.3.P.026. MyN If the 0.150 mm diameter tungsten filament in a light bulb is to have a resistance of 0.100 at 20.0°C, how long (nm) should it be? Xm Additional Materials Reading 6. -/10 points OSColPhys2016 20.3.P.029. My NC (a) To what temperature (°C) must you raise a copper wire, originally at 20.0*, to double its resistance, neglecting any changes in dimensions? (b) Does this happen in household wiring under ordinary arcumstances O Yes...
To what value would you have to raise the temperature of a copper wire (originally at 20 ∘C) to increase its resistance by 17 % ?
What final temperature of a platinum wire (originally at 20.0 0C) is required to increase its resistance from 80.0 Ω to 104 Ω?
A copper wire has a resistance of 0.525 at 20.0°C, and an iron wire has a resistance of 0.545 at the same temperature. At what temperature are their resistances equal?
3 WA 017 A copper wire has a resistance of 0.455 2 at 20.0°C, and an iron wire has a resistance of 0.494 n at the same temperature. At what temperature are their resistances equal? The temperature coefficient of resistivity for copper is 3.90 x 10 (oc) and for iron it is 5.00 x 10 (Pc)- -34 What is the expression that gives the temperature dependence of resistance? Both materials go through the same temperature difference. How can you use...
A copper wire has a resistance of 0.500 Ω at 20.0°C, and an iron wire has a resistance of 0.520 Ω at the same temperature. At what temperature are their resistances equal? The temperature coefficient of resistivity for copper is 3.90 *10^-3(°C)−1 and for iron it is 5.00 *10^-3(°C)−1.
A given copper wire has a resistance of 5.05 Ω at 20.0°C while a tungsten wire of the same diameter has a resistance of 4.69 Ω at 20.0°C. At what temperature will the two wires have the same resistance? Your response differs from the correct answer by more than 10%. Double check your calculations.°C
4. A 0.500 kg piece of copper at an initial temperature of 20.0°C is placed in a water bath and the temperature of the metal is raised to 100.0°C. Note: The specific heat capacity of copper is 385J/kg K and the latent heat of fusion is 2.07x1057/kg. a. How much heat was required to raise the temperature of the copper? b. How much more heat would be required to raise the copper to its melting point? C. How much heat...
1. What is the resistance at normal room temperature of 60 m of copper wire having a diameter of 0.64 mm? (r copper = 1.7241 X 10^-8 at 20 C) 2. A semi-circular copper conductor has an inner radius of 60 cm, an axial thickness of 4 cm and a radial thickness of 3 cm. Determine the resistance of this conductor between its two end contact faces at 70 C
How much heat energy must be added to a 6.0-cm-diameter copper sphere to raise its temperature from-50° C to 190° C? Express your answer with the appropriate units. Units