Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
4th Edition
ISBN: 9780133942651
Author: Randall D. Knight (Professor Emeritus)
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 27, Problem 64EAP
An aluminum wire consists of the three segments shown in FIGURE P27.64. The current in the top segment is 10 A. For each of these three segments, find the
a. Current I.
b. Current density J.
c. Electric field E.
d. Drift velocity vd.
e. Electron current i.
Place your results in a table for easy viewing.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
1. A charge of 12 C passes through the filament of a car headlamp bulb in 4 s. What is the current?2. A current of 0,5 A flows for 20 s through a small electric motor. How much charge has passed?3. A current of 200 mA flows for 2 minutes. How much charge has passed?
1. A. Discuss what electric current is with respect to how you understand drift velocity of moving electric charges.
B. In what ways are electron flow and electric current the same? In what ways are these terms different?
C. How is drift velocity dependent on current density?
A current from a 12 V battery passes through a 10.0 m long, 0.25 mm diameter
copper wire.
a. What is the resistance of the wire?
b.
Determine the current in the wire?
Chapter 27 Solutions
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
Ch. 27 - Prob. 1CQCh. 27 - Prob. 2CQCh. 27 - The electron drift speed in a wire is exceedingly...Ch. 27 - Prob. 4CQCh. 27 - Prob. 5CQCh. 27 - All the wires in FIGURE Q27.6 are made of the same...Ch. 27 - Both batteries in FIGURE Q27.7 are ideal and...Ch. 27 - Both batteries in FIGURE Q27.8 are ideal and...Ch. 27 - The wire in FIGURE Q27.9 consists of two segments...Ch. 27 - Prob. 10CQ
Ch. 27 - ll. The wires in FIGURE Q27.11 are all made of the...Ch. 27 - Which, if any, of these statements are true? (More...Ch. 27 - Prob. 1EAPCh. 27 - Prob. 2EAPCh. 27 - .0 × 1016 electrons flow through a cross section...Ch. 27 - Prob. 4EAPCh. 27 - Prob. 5EAPCh. 27 - Prob. 6EAPCh. 27 - Prob. 7EAPCh. 27 - Prob. 8EAPCh. 27 - Prob. 9EAPCh. 27 - Prob. 10EAPCh. 27 - Prob. 11EAPCh. 27 - The current in an electric hair dryer is 10.0 A....Ch. 27 -
13. When a nerve cell fires, charge is...Ch. 27 - Prob. 14EAPCh. 27 - Prob. 15EAPCh. 27 - Prob. 16EAPCh. 27 - Prob. 17EAPCh. 27 - Prob. 18EAPCh. 27 - Prob. 19EAPCh. 27 - Prob. 20EAPCh. 27 - Prob. 21EAPCh. 27 - Prob. 22EAPCh. 27 - Prob. 23EAPCh. 27 - 24. The two segments of the wire in FIGURE EX27.24...Ch. 27 - A 1.5 V battery provides 0.50 A of current. a. At...Ch. 27 - Prob. 26EAPCh. 27 - Prob. 27EAPCh. 27 - Prob. 28EAPCh. 27 - Prob. 29EAPCh. 27 - Prob. 30EAPCh. 27 - Prob. 31EAPCh. 27 - Prob. 32EAPCh. 27 - Prob. 33EAPCh. 27 - Prob. 34EAPCh. 27 - Prob. 35EAPCh. 27 - Prob. 36EAPCh. 27 - Prob. 37EAPCh. 27 - Prob. 38EAPCh. 27 - Prob. 39EAPCh. 27 - Prob. 40EAPCh. 27 - Prob. 41EAPCh. 27 - Prob. 42EAPCh. 27 - Prob. 43EAPCh. 27 - Prob. 44EAPCh. 27 - Prob. 45EAPCh. 27 - Prob. 46EAPCh. 27 - Prob. 47EAPCh. 27 - Prob. 48EAPCh. 27 - Prob. 49EAPCh. 27 - Variations in the resistivity of blood can give...Ch. 27 - The conducting path between the right hand and the...Ch. 27 - The conductive tissues of the upper leg can be...Ch. 27 - The resistivity of a metal increases slightly with...Ch. 27 - Prob. 54EAPCh. 27 - You need to design a 1.0 A fuse that “blows” if...Ch. 27 - I A hollow metal cylinder has inner radius a....Ch. 27 - A hollow metal sphere has inner radius a, outer...Ch. 27 - The total amount of charge in coulombs that has...Ch. 27 - The total amount of charge that has entered a wire...Ch. 27 - The current in a wire at time t is given by the...Ch. 27 - The current supplied by a battery slowly decreases...Ch. 27 - The two wires in FIGURE P27.62 are made of the...Ch. 27 - What diameter should the nichrome wire in FIGURE...Ch. 27 - An aluminum wire consists of the three segments...Ch. 27 - A wire of radius R has a current density that...Ch. 27 - A 0.60 -mm-diameter wire made from an alloy (a...Ch. 27 - A 20 -cm-long hollow nichrome tube of inner...Ch. 27 - Prob. 68EAPCh. 27 - Prob. 69EAPCh. 27 - Prob. 70EAPCh. 27 - Prob. 71EAPCh. 27 - Prob. 72EAPCh. 27 - Prob. 73EAPCh. 27 - Prob. 74EAPCh. 27 - Prob. 75EAPCh. 27 - Prob. 76EAP
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
- p versus T. The figure shows the behavior of the resistivity p of a material Z as a function of temperature T. If a constant electric field is maintained inside it, which of the following statements is/are TRUE P. about the metal? I. The current density in metal Z increases with increasing tempera- -T To ture. II. Its resistivity at T = T, is Po. III. Metal Z becomes a better conductor with increasing temperature. A. I only В. П only C. I and II D. II and IIIarrow_forwardAn iron rod has 3.48×10^19 free electrons of which 70% are directed to move due east for a period of 12s. The rest however move randomly in the iron. a. Calculate the current produced. b. In what direction is the current flowing? ( charge of electron, e=1.6×10^-19)arrow_forwardB3arrow_forward
- A rod of length 2.3 m, with a rectangular cross section (1.5mm x 3.0 mm) is made ofa material with a resistivity of 6.1 × 10^-8 Ohm. A potential difference of 5.0 V isplaces across the ends of the rod.a. Draw a clear physics diagram of the problem.b. At what initial rate is heat generated in the rod?c. Will the rate from part (b) increase, decrease, or remain constantover time, as the rod remains connected to the 2.5 V potential difference?Explain brieflyarrow_forwardQ18 A capacitor is connected to batteries by Nichrome wires and allowed to charge completely. Then the plates are suddenly moved farther apart. Describe what happens and explain in detail why it happens, based on fundamental physical principles. If you give a direction for a current, state whether you are describing electron current or conventional current. Include appropriate diagrams to support your explanation.arrow_forwardThe electron beam inside an old television picture tube is 0.40 mm in diameter and carries a current of 50 µA. This electron beam impinges on the inside of the picture tube screen. a. How many electrons strike the screen each second? b. What is the current density in the electron beam? c. The electrons move with a velocity of 4.0 × 107 m/s. What electric field strength is needed to accelerate electrons from rest to this velocity in a distance of 5.0 mm? d. Each electron transfers its kinetic energy to the picture tube screen upon impact. What is the power delivered to the screen by the electron beam?arrow_forward
- Solve the following: 1. How many nanocoulomb are there in 3.65 billion electrons ? 2. A 25 ampere electric current flows in a conductor in 75 millisecond. Find: a. current equivalent in mA? b. How many charges are transferred ? c. How much work is required to transfer if 3V is applied. 3. A charge of 3.5 µC present in an electric field produces a force of 0.008 Newton. What is the intensity of the electric field ? 4. A charge of 0.6 µC is placed in an electrostatic field whose intensity is 3 x 105 N/C. How strong is the force acting on the charge ? 5. Two objects are both negatively charge with 0.04 coulomb each and 140 cm apart. What kind of force exist Between charges? How much? 6. Find the force that exist between two charges of 8.53 μC and 4.5 µC that 0.25 meters in air?arrow_forward6. High energy proton beams can be used to kill cancer cells. The beam consists of protons with 2.5x10-" J and a current of 75 nA. Assume all the protons stop in the tumor. A total of 3.4x10-3 J is needed to treat the tumor. A. How fast are the protons moving? B. What is the energy of each proton and the total energy needed in eV? C. How many protons reach the tumor each second? D. How long should the beam run to deliver the required amount of energy to the tumor?arrow_forwardV4arrow_forward
- A 70 W electric blanket runs at 18 V.a. What is the resistance of the wire in the blanket?b. How much current does the wire carry?arrow_forward2. A cylindrical copper cable 1.50 km long is connected across a 220-V potential difference. The resistivity of copper at room temperature (-293 K) is 1.72 x 10¹ m. a. What should be its diameter so that it produces heat (.e. dissipates electrical energy) at a rate of 90.0 W? b. What is the electric field inside the cable under these conditions? c. What is the current flowing through the copper cable? d. If the temperature of the copper cable increases by 10 degrees, what is the new resistivity of the copper cable and what is the new rate at which it produces heat? Neglect the effect of changes in the cable's dimensions.arrow_forward1. DETAILS SERPSE10 26.1.OP.002. MY NOTES ASK YOUR TEACHER Particles with a charge of +5e are incident on a target. If the beam of particles carries a current of 119 µA, how many particles strike the target in a period of 30.0 s? particles 2. DETAILS SERPSE10 26.2.OP.006. MY NOTES ASK YOUR TEACHER A silver wire has a length of 1.50 m and a cross sectional area of 0.360 mm2. If the resistivity of silver is 1.59 x 10-8 0. m and a potential difference of 0.500 V is maintained across its length, determine the current in the wire (in A). A Submit Answer 3. DETAILS SERPSE10 26.6.OP.021. MY NOTES ASK YOUR TEACHER Batteries are rated in terms of ampere-hours (A · h). For example, a battery that can produce a current of 2.00 A for 3.00 h is rated at 6.00 A · h. (a) What is the total energy stored in a 12.0-V battery rated at 62.0 A · h? kWh (b) At $0.0940 per kilowatt-hour, what is the value of the electricity produced by this battery? $arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Physics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
College PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
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