-3 A tungsten wire has a resistance of 6.50 at 16.0°C. Determine its resistance (in (2) at 416°C. The temperature coefficient of resistivity for tungsten wire is 4.50 × 10-³ (°C) -1. (Assume that the temperature coefficient of resistivity was measured using the reference temperature 20°C.) Ω
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- An aluminum wire has a resistance of 3.00 N at 31.0°C. Determine its resistance (in N) 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.)An iron wire has a resistance of 2.50 Q at 13.0°C. Determine its resistance (in N) at 413°C. The temperature coefficien resistivity for iron wire is 5.00 × 10¬3 (°C)-. (Assume that the temperature coefficient of resistivity was measured us reference temperature 20°C.) We are interested in two cases, For case 1, we know the resistance at some temperature and for case 2 we wish to detostro Imssb1.mutah.edu.jo/mod/ A thermometer made of Platinum has a resistance of 50 2 at 20 C, what is the measured temperature (in units of C) when its resistance is 77 N. Assume the temperature coefficient of resistivity to be a= 3.92x 10 C
- An iron wire has a resistance of 2.50 N at 33.0°C. Determine its resistance (in 2) at 433°C. The temperature coefficient of resistivity for iron wire is 5.00 × 10-3 (°C)-1. (Assume that the temperature coefficient of resistivity was measured using the reference temperature 20°C.)A resistor made of Nichrome wire is used in an application where its resistance cannot change more than 1.65% from its value at 20.0°C. Over what temperature range can it be used? The temperature coefficient of resistivity for Nichrome is 0.4 x 10-3 (°C)-1, 61.25 What is the expression that gives the temperature dependence of resistance? What is the ratio of R to R, if the change cannot be more than 1.65%?°C 21.25 What is the expression that gives the temperature dependence of resistance? What is the ratio of R to Ro if the change cannot be more than 1.65%?°C lower limit upper limit A jeweler uses a draw plate to stretch a wire to five times its original length. By what factor does its resistance increase? 5 What happens to the cross sectional area of the wire when the length is increased?Calculate the ratio of the resistance of 15.0 m of aluminum wire 2.3 mm in diameter, to 30.0 m of copper wire 1.7 mm in diameter. The resistivity of copper is 1.68 x 10–8 N. m and the resistivity of aluminum is 2.65 x 10-8 N · m. Express your answer using two significant figures.
- What is the resistance of a NichromeTM wire at 0.0 ∘C∘C if its resistance is 105.60 ΩΩ at 12.1 ∘C∘C? The temperature coefficient of resistivity for NichromeTM is 0.00040 (∘C)−1(∘C)−1 . Enter your answer in ohms to four significant figures.A tungsten wire has a resistance of 4.00 at 11.0°C. Determine its resistance (in ) at 411°C. The temperature coefficient of resistivity for tungsten wire is 4.50 × 10-3 (°C)¯¹. (Assume that the temperature coefficient of resistivity was measured using the reference temperature 20°C.) 11.2 X We are interested in two cases. For case 1, we know the resistance at some temperature and for case 2 we wish to determine the resistance at some other temperature. Write an expression for the resistance as a function of the temperature for each case and eliminate Ro between the two expressions in order to determine the resistance for case 2.An aluminum rod has a resistance of 1.585 2 at 23.0°C. Calculate the resistance of the rod at 136.00°C by accounting for the changes in both the resistivity and the dimensions of the rod. Round your answer to the nearest thousandth and write it in the answer section. For aluminum: Temperature resistance coeff. ¤f = 3.90 X 10-3 °C-1, length expansion coeff. a = 24.0 X 10-6 °C-1.
- Wire C and wire D are made from the same material of resistivity p- 2.0 x 10 am. The length and radius of wire Care Le 1.0m and re 2.00 mm, and those of wire D are Le- 0.50.m and ro-0.75 mm. The wires are joined as shown in the figure. What is the resistance R between points 1 and 2?Given the temperature coefficient of resistivity of a certain wire to be 3.1 x10-3 (°C)-1.By what factor is the resistance of this wire changed when its temperature is increased from 20.0°C to 79.48 °C? R RoA silver wire has a resistance of 3.00 N at 27.0°C. Determine its resistance (in 2) at 427°C. The temperature coefficient of resistivity for silver wire is 3.80 × 10¬³ (°C). (Assume that the temperature coefficient of resistivity was measured using the reference temperature 20°C.)