A wire with a temperature coefficient of resistance (-0.0060/C) has a resistance of 5.64 at 20°...
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
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 coil of wire has a resistance of 38.0 Ω at 25° C and 43.7 Ω at 54° C. What is the temperature coefficient of resistivity?
An aluminum wire has a resistance of 3.00 2 at 31.0°C. Determine its resistance (in 2) at 431°C. The temperature coefficient of resistivity for aluminum wire is 3.90 x 10-3 (°C)-1. (Assume that the temperature coefficient of resistivity was measured using the reference temperature 20°C.)
Which of the following is the correct statement regarding resistance? a. the resistance of a wire is inversely proportional to the resistivity of the wire b. the resistance of a wire is directly proportional to the length of the wire c. the resistance of a wire is directly proportional to the area of the wire d. all of the above statements are correct e. none of the above statements are correct Consider two copper wires. One wire has twice the...
The resistance of a certain wire is 20 Ohms. Another wire of the same material has a diameter 1/3 as great and twice the length. What is the resistance of the second wire?
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?
At 45?C, the resistance of a segment of gold wire is 67 ?. When the wire is placed in a liquid bath, the resistance increases to 177 ?. The temperature coefficient is 0.0034 (?C)?1 at 20?C. What is the temperature of the bath? Answer in units of ?C.
Now let’s see how temperature affects the resistance of copper wire. A length of 18 gauge copper wire with a diameter of 1.02 mm and a cross-sectional area of 8.20×10−7 m2 has a resistance of 1.02 Ω at a temperature of 20 ∘C. Find the resistance at 0 ∘C and at 100 ∘C. The temperature coefficient of resistivity of copper is 0.0039 (C∘)−1. On a hot summer day in Death Valley, the resistance is 1.15 Ω. What is the temperature?