(a) A 35.5-m length of copper wire at 20.0°C has a radius of 0.23 mm. If a potential difference of 7.0 V is applied across the length of the wire, determine the current in the wire. (Use the values in the following table.)Resistivities and Temperature Coefficients of Resistivityfor Various Materials (at 20°C)MaterialSilverACopperGoldAluminumTungstenIronPlatinumLeadNichrome aCarbonGermaniumSiliconGlassHard rubberSulfurQuartz (fused)Resistivity(2. m)1.59 x 1071.7 x 10-82.44 x 10-82.82 x 105.6 x 10710.0 x 1011 x 10-8-80.46-864022 x 10-83.5 x 107-8-8150 x 10--8-51010-1014≈1013101575 x 1016Temperature Coefficientof Resistivity [(°C)-¹]3.8 x 10-33.9 × 10-33.4 x 10-33.9 x 1075.0 x 104.5 x 10-33.92 x 10-3-30.4 x 107-33.9 × 10-3-3-3-0.5 x 107-48 x 10-3-75 x 10-3aA nickel-chromium alloy commonly used in heating elements.(b) If the wire is heated to 40.0°C while the 7.0-V potential difference is maintained, what is the resulting current in the wire?A

Answered: Image /qna-images/answer/e786050a-1012-4e7f-8b07-fb5c113161b4.jpg

(a) A 35.5-m length of copper wire at 20.0°C has a radius of 0.23 mm. If a potential difference of 7.0 V is applied across the length of the wire, determine the current in the wire. (Use the values in the following table.) Resistivities and Temperature Coefficients of Resistivity for Various Materials (at 20°C) Material Silver Copper Gold A Aluminum Tungsten Iron Platinum Lead Nichromea Carbon Germanium Silicon Glass Hard rubber Resistivity (Q.m) 1.59 x 10-8 1.7 x 10-8 2.44 x 10-8 2.82 x 10-8 5.6 x 10-8 10.0 x 10-8 11 x 10-8 22 x 10-8 150 x 10-8 3.5 x 10-5 1010-1014 #1013 1015 Quartz (fused) 75 x 1016 Sulfur 0.46 640 Temperature Coefficient of Resistivity [(°C)-¹] 3.8 x 10-3 3.9 x 10-3 3.4 x 10-3 3.9 x 10-3 4.5 x 10-3 5.0 x 10-3 3.92 x 10-3 3.9 x 10-3 0.4 x 10-3 -0.5 x 10-3 -48 x 10-3 -75 x 10-3 A nickel-chromium alloy commonly used in heating elements. (b) If the wire is heated to 40.0°C while the 7.0-V potential difference is maintained, what is the resulting current in the wire? A

(a) A 35.5-m length of copper wire at 20.0°C has a radius of 0.23 mm. If a potential difference of 7.0 V is applied across the length of the wire, determine the current in the wire. (Use the values in the following table.) Resistivities and Temperature Coefficients of Resistivity for Various Materials (at 20°C) Material Silver Copper Gold A Aluminum Tungsten Iron Platinum Lead Nichromea Carbon Germanium Silicon Glass Hard rubber Resistivity (Q.m) 1.59 x 10-8 1.7 x 10-8 2.44 x 10-8 2.82 x 10-8 5.6 x 10-8 10.0 x 10-8 11 x 10-8 22 x 10-8 150 x 10-8 3.5 x 10-5 1010-1014 #1013 1015 Quartz (fused) 75 x 1016 Sulfur 0.46 640 Temperature Coefficient of Resistivity [(°C)-¹] 3.8 x 10-3 3.9 x 10-3 3.4 x 10-3 3.9 x 10-3 4.5 x 10-3 5.0 x 10-3 3.92 x 10-3 3.9 x 10-3 0.4 x 10-3 -0.5 x 10-3 -48 x 10-3 -75 x 10-3 A nickel-chromium alloy commonly used in heating elements. (b) If the wire is heated to 40.0°C while the 7.0-V potential difference is maintained, what is the resulting current in the wire? A

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

1. What current flows through a 0.50 mm diameter rod of annealed Copper that is 90.0 cm long, when 12 V is applied to it? Resistance of the annealed Copper = Current flowing through the annealed Copper = A [3 marks] Resistivity p Material (ohm m) Silver 1.59 x 10-8 Copper 1.68 x10-8 Copper, annealed 1.72 x10-8 Aluminum 2.65 x10-8 Tungsten 5.6 x10-8 Iron 9.71 x10-8 Platinum 10.6 x10-8 Manganin 48.2 x10-8 Lead 22 x10-8
Aluminum and copper wires of equal length are found to have the same resistance. What is the ratio of their radii? Note: You need to use the concept of resistivity and find the resistivity of these two materials to solve this problem. You can find a table of resistivity in your textbook or use the internet.
Consider the following. R Vba = 12 V (a) Find the current through the resistor in the figure above. (Take R = 6 02.) (b) If the resistor is made of carbon, what will its resistance be when its temperature is increased by 97.0 C°? (The temperature coefficient of resistivity for carbon is -5.0 x 10-4 (°C)-¹.) b
Please help me solve the following.I answered it correctly, but have since forgotten the formula. Will be determining the cable's cross-sectional area, and the power loss.
A wire is 1.2 m long and 1.2 mm² in cross-sectional area. It carries a current of 5.6 A when a 3.0 V potential difference is applied between its ends. Calculate the conductivity of the material of which this wire is made. Number i 1 Units (Q.m)^-1
confused by charts
A copper wire of radius a = 0.172 mm has an aluminum jacket of outer radius b = 0.231 mm. There is a current i = 1.58 A in the composite wire. Take the resistivity for copper and aluminum to be 1.69 × 10*Q-m and 2.75 × 10-°2-m. Calculate the current in (a) the copper and (b) the aluminum. (c) If a potential difference V = 10.4 V between the ends maintains the current, what is the length in meters of the composite wire? (a) Number i Units (b) Number i Units (c) Number i Units
For some materials, the ratio of the current density to the applied electric field is constant and is equal to the of the material. The answer cannot be found on the other choices. resistivity: conductance: resistance;
The graph below shows data for a wire that is 9 m long & has a cross-sectional area of 0.002 m². The wire is made from an unknown material. Determine the resistivity of the material and the power loss of the wire when the current is 100 A. VOLTAGE vs. CURRENT GRAPH V (V) 500 400 300 200 100 20 40 60 80 1 (A) 100 resistivity of wire = power loss (when I = 100 A) = ABACHER 2-m
QUESTION 1 Consider a carbon rod resistor that has a uniform cross-sectional area of 5.00 mm-. When a potential difference of 3.5 V is applied across the ends of the rod, the rod carries a current of 0.40 A. Find the rod's length (in cm) if its resistivity is p=3.5 x 10 5 Q. m.
Part (a) I measure the resistance of this wire and find it to be R = 156 Q. What is the resistivity of the material the wire is made out of? p= Problem 7: A particular wire has a length of L = 2.7 m and a circular cross-sectional area of radius r= 1.69 mm. G= sin() cos cotan() asin()) acotan() atan() cosh() tanh() I= sin()) cos() cotan() asin() sinh() atan() acotan cosh() tanh() cotanh() Degrees O Radians B Degrees O Radians Part (b) What is the conductivity of this wire, in inverse Ohms per meter? 0 tan()) π ( acos() E ^^^L sinh() cotanh() g L P Y d h m r tan() π acos() E ^^^^ π E 1 Part (c) Give an expression for the current density in the wire if an electric field E is passing through it. Write this in terms of the resistivity and the other variables in the problem. J= n R ( ^^^ sin() cos() cotan() asin() atan() acotan() cosh() + + 7 8 9 4 5 6 1 2 3 0 END NO BACKSPACE DEL CLEAR Part (d) Calculate the current in the wire, in milliamperes, if the field strength is 5.28 V/m. - END NO…
(a) A 35.1-m length of copper wire at 20.0°C has a radius of 0.23 mm. If a potential difference of 7.0 V is applied across the length of the wire, determine the current in the wire. (Use the values in the following table.) Resistivities and Temperature Coefficients of Resistivity for Various Materials (at 20°C) Material Resistivity(Ω · m) Temperature Coefficientof Resistivity [(°C)−1] Silver 1.59 ✕ 10−8 3.8 ✕ 10−3 Copper 1.7 ✕ 10−8 3.9 ✕ 10−3 Gold 2.44 ✕ 10−8 3.4 ✕ 10−3 Aluminum 2.82 ✕ 10−8 3.9 ✕ 10−3 Tungsten 5.6 ✕ 10−8 4.5 ✕ 10−3 Iron 10.0 ✕ 10−8 5.0 ✕ 10−3 Platinum 11 ✕ 10−8 3.92 ✕ 10−3 Lead 22 ✕ 10−8 3.9 ✕ 10−3 Nichromea 150 ✕ 10−8 0.4 ✕ 10−3 Carbon 3.5 ✕ 10−5 −0.5 ✕ 10−3 Germanium 0.46 −48 ✕ 10−3 Silicon 640 −75 ✕ 10−3 Glass 1010–1014 Hard rubber ≈1013 Sulfur 1015 Quartz (fused) 75 ✕ 1016 aA nickel–chromium alloy commonly used in heating elements. ??A(b) If the wire is heated to 36.0°C while the 7.0-V potential difference is…