University Physics with Modern Physics, Volume 2 (Chs. 21-37); Mastering Physics with Pearson eText -- ValuePack Access Card (14th Edition)
14th Edition
ISBN: 9780134265414
Author: Hugh D. Young, Roger A. Freedman
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 42.4, Problem 42.4TYU
One type of thermometer works by measuring the temperature-dependent electrical resistivity of a sample. Which of the following types of material displays the greatest change in resistivity for a given temperature change? (i) Insulator; (ii) semiconductor; (iii) conductor.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A Resistive Heater. You and your team are designing a small tube heater that consists of a small ceramic tube
wrapped with a special heater wire composed of Nichrome. When you run an electrical current through the wire, the
wire (and therefore the tube) heats up through resistive heating. Nichrome is an alloy composed of 80% nickel and
20% chromium, and has a resistivity of p = 1.25 × 10-602. m.
(a) What is the resistance per centimeter of 28-gauge Nichrome wire? ("28 gauge" means the wire has a diameter D=
0.320 mm)
(b) You wrap the tube with 41.0 cm of the Nichrome wire, and you want the power output of your heater to be 115
W. What current is needed?
(c) What voltage will provide the current calculated in (b)?
(a) Number
i
Units
(b) Number i
Units
(c) Number
Units
A well-insulated rigid vessel contains 3 kg of saturatedliquid water at 40°C. The vessel also contains an electricalresistor that draws 10 amperes when 50 volts are applied. Determine the final temperature in the vessel after the resistor has been operating for 30 minutes.
Copper wire has a resistivity o = 1.7 x 10-8 22m when at 20°C and it has a
temperature coefficient a = 3.9 × 10-3 K-1. A solid cylinder of copper of length L = 85 cm and diameter D =
1.5 mm has one end held at T₁ = 15°C and the other end is held at T2 = 230°C. The temperature increases
linearly between the two ends of the cylinder.
T₁
dx
R=
L
T₂
Part (a) Consider a thin slice of the copper cylinder of thickness dx that is located a distance x from the left end of the cylinder. Write an equation for the
temperature of this slice in terms of the variables x, L, T1, and T2.
Part (b) Determine the total resistance in milliohms.
Chapter 42 Solutions
University Physics with Modern Physics, Volume 2 (Chs. 21-37); Mastering Physics with Pearson eText -- ValuePack Access Card (14th Edition)
Ch. 42.1 - If electrons obeyed the exclusion principle but...Ch. 42.2 - Prob. 42.2TYUCh. 42.3 - Prob. 42.3TYUCh. 42.4 - One type of thermometer works by measuring the...Ch. 42.5 - Prob. 42.5TYUCh. 42.6 - Prob. 42.6TYUCh. 42.7 - Suppose a negative charge is placed on the gate of...Ch. 42 - Van der Waals bonds occur in many molecules, but...Ch. 42 - Prob. 42.2DQCh. 42 - The H2+ molecule consists of two hydrogen nuclei...
Ch. 42 - The moment of inertia for an axis through the...Ch. 42 - Prob. 42.5DQCh. 42 - Prob. 42.6DQCh. 42 - Prob. 42.7DQCh. 42 - The air you are breathing contains primarily...Ch. 42 - Prob. 42.9DQCh. 42 - Prob. 42.10DQCh. 42 - What factors determine whether a material is a...Ch. 42 - Prob. 42.12DQCh. 42 - Prob. 42.13DQCh. 42 - Prob. 42.14DQCh. 42 - Prob. 42.15DQCh. 42 - Prob. 42.16DQCh. 42 - Prob. 42.17DQCh. 42 - Prob. 42.18DQCh. 42 - Prob. 42.19DQCh. 42 - Prob. 42.20DQCh. 42 - Prob. 42.21DQCh. 42 - Prob. 42.22DQCh. 42 - Prob. 42.23DQCh. 42 - Prob. 42.24DQCh. 42 - If the energy of the H2 covalent bond is 4.48 eV,...Ch. 42 - An Ionic Bond, (a) Calculate the electric...Ch. 42 - Prob. 42.3ECh. 42 - Prob. 42.4ECh. 42 - Prob. 42.5ECh. 42 - Prob. 42.6ECh. 42 - Prob. 42.7ECh. 42 - Two atoms of cesium (Cs) can form a Cs2 molecule....Ch. 42 - Prob. 42.9ECh. 42 - Prob. 42.10ECh. 42 - A lithium atom has mass 1.17 1026 kg, and a...Ch. 42 - Prob. 42.12ECh. 42 - When a hypothetical diatomic molecule having atoms...Ch. 42 - The vibrational and rotational energies of the CO...Ch. 42 - Prob. 42.15ECh. 42 - Prob. 42.16ECh. 42 - Prob. 42.17ECh. 42 - Prob. 42.18ECh. 42 - Prob. 42.19ECh. 42 - Prob. 42.20ECh. 42 - Prob. 42.21ECh. 42 - Prob. 42.22ECh. 42 - Prob. 42.23ECh. 42 - Prob. 42.24ECh. 42 - Prob. 42.25ECh. 42 - Prob. 42.26ECh. 42 - Prob. 42.27ECh. 42 - Prob. 42.28ECh. 42 - Prob. 42.29ECh. 42 - Prob. 42.30ECh. 42 - Prob. 42.31ECh. 42 - Prob. 42.32ECh. 42 - Prob. 42.33PCh. 42 - Prob. 42.34PCh. 42 - Prob. 42.35PCh. 42 - The binding energy of a potassium chloride...Ch. 42 - (a) For the sodium chloride molecule (NaCl)...Ch. 42 - Prob. 42.38PCh. 42 - Prob. 42.39PCh. 42 - Prob. 42.40PCh. 42 - Prob. 42.41PCh. 42 - Prob. 42.42PCh. 42 - Prob. 42.43PCh. 42 - Prob. 42.44PCh. 42 - Prob. 42.45PCh. 42 - Prob. 42.46PCh. 42 - Prob. 42.47PCh. 42 - Prob. 42.48PCh. 42 - Prob. 42.49PCh. 42 - Prob. 42.50PCh. 42 - Prob. 42.51PCh. 42 - Prob. 42.52PCh. 42 - Prob. 42.53CPCh. 42 - Prob. 42.54CPCh. 42 - Prob. 42.55CPCh. 42 - Prob. 42.56PPCh. 42 - Prob. 42.57PPCh. 42 - Prob. 42.58PP
Additional Science Textbook Solutions
Find more solutions based on key concepts
If acceleration is proportional to the net force or is equal to net force.
Conceptual Physics (12th Edition)
Which one is larger from force of earth’s magnetic field on each wire and magnetic force between two wires.
College Physics: A Strategic Approach (3rd Edition)
Four uses of synthetic polymers.
Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
The pV-diagram of the Carnot cycle.
Sears And Zemansky's University Physics With Modern Physics
A ball rebounds elastically from the floor. What doesthis situation share with the ideas of momentum conservati...
Modern Physics
How can an object transfer heat if the object does not possess a discrete quantity of heat?
University Physics Volume 2
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- A Cu wire of diameter of 2 mm and length of 1 m initially at room temperature of 300 K is applied a constant voltage difference of 100 V for 1000 seconds. The temperature of the wire rose due to Joule heating during the application of the voltage, so one waited for a sufficiently long time after the voltage is removed for the wire to cool back to the room temperature of 300 K. The conductivity of Cu is 6×107S/m. Please answer the following questions, assuming the surroundings is at room temperature 300 K: (a) What is the internal energy change for the wire from the very initial state to the final state after the entire process ends? (b) What is the internal energy change for the surroundings for the entire process? (c) What is the amount of heat that was generated in the wire and transferred to the surroundings during the entire process? (d) What is the total internal energy change of the wire plus the surroundings during the entire process? (e) What is the entropy change for the wire…arrow_forwardCopper wire has a resistivity p = 1.7 × 10-8 ∙m when at 20°C and it has a temperature coefficient a = 3.9 × 10-³ K-¹. A solid cylinder of copper of length L = 45 cm and diameter D = 1.5 mm has one end held at T₁ = 15°C and the other end is held at T2 = 280°C. The temperature increases linearly between the two ends of the cylinder. T₁ dx L T₂ Consider a thin slice of the copper cylinder of thickness dx that is located a distance x from the left end of the cylinder. Write an equation for the temperature of this slice in terms of the variables x, L, T₁, and T2. Determine the total resistance in milliohms.arrow_forwardProblem 5: Copper wire has a resistivity p = 1.7 x 10-8 2 m when at 20°C and it has a temperature coefficient a = 3.9 x 10-3 K-1. A solid cylinder of copper of length L = 75 cm and diameter D = 1.5 mm has one end held at T1 = 14°C and the other end is held at T2 = 240°C. The temperature increases linearly between the two ends of the cylinder. L T2 dx Part (a) Consider a thin slice of the copper cylinder of thickness dx that is located a distance x from the left end of the cylinder. Write an equation for the temperature of this slice in terms of the variables x, L, T1, and T2. Expression : T = Select from the variables below to write your expression. Note that all variables may not be required. a, B, 0, d, g, h, j, k, L, m, P, t, T1, T2, x Part (b) Determine the total resistance in milliohms. Numeric : A numeric value is expected and not an expression. R =arrow_forward
- The resistance of the tungsten filament of an incandescent light bulb at 24 degC is 32 Ohms. If the light bulb is connected to a voltage of 130 V a current of 0.3 A flows through the filament. What will be the temperature of the light bulb filament under working conditions? The temperature coefficient of resistance of tungsten is 4.6E-3 1/degC. Your answer must be in degC, other scales are not accepted.arrow_forward2. a) The resistivity of copper is 1.7241 x 10-8 (22-m) at 20°C. What is the conductivity of copper at 27°C in units of (0-m)-¹ and (0-cm)-1 if the temperature coefficient of resistivity of copper is 3.9 x 10-³/°C? b) Explain the change of conductivity with temperature. 2 For carbon: - 35 x 10-50-m and g --50 x 10-4 1°Carrow_forwardCopper wire gas resistivity density=1.7x10^-8 omega•m what at 20 degrees X and it has a temps tire coefficient a=3.9x10^-3 K^-1. A solid cylinder of copper of length L=75 cm and diameter D=1.5 mm has one end held at T1=15 degrees C and the other is held at T2=210 degrees C. The temperature increases linearly between the two ends of the cylinder. Part (a) Consider a thin slice of the copper cylinder of thickness DX that is located a distance X from the left of the cylinder. Write an equation for the temperature of this place in terms of the variables x,L,T1, and T2. Part (b) determine the total resistance in miliohms.arrow_forward
- 2.1 A piece of wire l cm long carries a current I when a voltage V is applied across its ends at a temperature of 0°C. If the resistivity of the material of which the wire is made varies as shown in the figure, what length of the same diameter wire is needed so that the same current flows when the same voltage is applied at temperature 400°C? 12 10 200 400 600 800 1000 Temperature ("C) Resistivity (10 Qm)arrow_forwardThe molar conductivity of Na1 ions in aqueous solution at 25°C has been determined to be =.01 × 10-2 (V cm)-1 mol-1L. Assume an electric field of 1.0 × 102 V cm-1 is applied to the solution. Calculate the mobility and the drift velocity of Na1 ions.arrow_forwardA close analogy exists between the flow of energy by heat because of a temperature difference (see Section 20.7) and the flow of electric charge because of a potential difference. In a metal, energy dQ and electrical charge dq are both transported by free electrons. Consequently, a good electrical conductor is usually a good thermal conductor as well. Consider a thin conducting slab of thickness dx, area A, and electrical conductivity o, with a potential difference dv between opposite faces. (a) Show that the current I = dq/dt is given by the equation on the left: Charge conduction Thermal conduction dq TA dt JdT| kA dt dQ | dx |AP| |dx In the analogous thermal conduction equation on the right (Eq. 20.15), the rate dQ/dt of energy flow by heat (in Sl units of joules per second) is due to a temperature gradient dT/dx in a material of thermal conductivity k. (b) State analogous rules relating the direction of the electric current to the change in potential and relating the direction of…arrow_forward
- In the classic model for electrical conduction, electron mobility u in a metal wire is defined as where v, is the drift velocity of the electrons and E is the electric field in the metal. This parameter is a measure of how freely electrons can travel through a metal when an electric field is applied, such as when the ends of a metal wire are connected to a potential difference. (a) Show that where a is the conductivity of the metal, n is the number density of the charge carriers, and q is the charge on each carrier. (Submit a file with a maximum size of 1 MB.) Choose File no file selected This answer has not been graded yet. (b) B = AVH is often written as AVH - R IB where R, is the Hall coefficient of the metal. Show that the following is true. (Submit a file with a maximum size of 1 MB.) Hyo -n (Choose File no file selected This answer has not been graded yet (c) The table below shows some measured values of Hall coefficients for some elemental materials. What is an average number…arrow_forwardCopper wire has a resistivity ρ = 1.7 × 10-8 Ω⋅m when at 20°C and it has a temperature coefficient α = 3.9 × 10-3 K-1. A solid cylinder of copper of length L = 85 cm and diameter D = 3.5 mm has one end held at T1 = 14°C and the other end is held at T2 = 210°C. The temperature increases linearly between the two ends of the cylinder. A) Consider a thin slice of the copper cylinder of thickness dx that is located a distance x from the left end of the cylinder. Write an equation for the temperature of this slice in terms of the variables x, L, T1, and T2. B) Determine the total resistance in milliohms.arrow_forwardCopper wire has a resistivity ρ = 1.7 × 10-8 Ω⋅m when at 20°C and it has a temperature coefficient α = 3.9 × 10-3 K-1. A solid cylinder of copper of length L = 85 cm and diameter D = 3.5 mm has one end held at T1 = 14°C and the other end is held at T2 = 210°C. The temperature increases linearly between the two ends of the cylinder. 1A) Consider a thin slice of the copper cylinder of thickness dx that is located a distance x from the left end of the cylinder. Write an equation for the temperature of this slice in terms of the variables x, L, T1, and T2. The answer to part a is T=( x/L ) T2 + ( 1 - ( x/L ) ) T1 b) Determine the total resistance in milliohms.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Circuits, Voltage, Resistance, Current - Physics 101 / AP Physics Review with Dianna Cowern; Author: Physics Girl;https://www.youtube.com/watch?v=q8X2gcPVwO0;License: Standard YouTube License, CC-BY