College Physics: A Strategic Approach, Books a la Carte Edition (4th Edition)
4th Edition
ISBN: 9780134700502
Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 22, Problem 5CQ
All wires in Figure Q22.519 are made of the same material and have the same diameter. Rank in order, from largest to smallest, the currents I1 to I4. Explain.
Figure Q22.5
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A 3.00 m length of copper wire at 20° C has a
1.20-m-long section with diameter 1.20 mm and a
1.80-m-long section with diameter 0.60 mm. There is a
current of 3.0 mA in the 1.20-mm-diameter section.
What is the magnitude of E in the 0.60-mm-diameter section?
Express your answer in volts per meter.
E2 = 0.109
Submit Previous Answers Request Answer
ΑΣΦ
X Incorrect; Try Again; 4 attempts remaining
Part D
V =
?
What is the potential difference between the ends of the 3.00 m length of wire?
Express your answer in volts.
ΑΣΦ
V/m
?
Please answer this excercise. This is not a graded question.
1. A silver wire 1.00 mm in diameter transfers a charge of 65.0 C in 1 hr. 15.0 min. Silver contains 5.0 × 1028 eoectrons per cubic meter. What is the current in the wire? What is the magnitude of the drift velocity of the electrons in the wire?
2. An aluminum wire carrying a current has a diameter of 0.600 mm. The electric field in the wire is 0.640 V/m. What is tue current carried by the wire? What is the potential difference between two points if the wires are 12.0m apart? What is the resistance of a 12.0m length of wire?
a. If a current of 82.0 mA exists in a metal wire, how many electrons flow past a given cross section of the wire in 10.5 minutes? electrons ?
b. A proton beam in an accelerator carries a current of 105 µA. If the beam is incident on a target, how many protons strike the target in a period of 22.0 s? protons ?
c. An electric heater carries a current of 19.5 A when operating at a voltage of 3.90 102 V. What is the resistance of the heater? Ω ?
Chapter 22 Solutions
College Physics: A Strategic Approach, Books a la Carte Edition (4th Edition)
Ch. 22 - Prob. 2CQCh. 22 - Prob. 3CQCh. 22 - Prob. 4CQCh. 22 - All wires in Figure Q22.519 are made of the same...Ch. 22 - A wire carries a 4 A current. What is the current...Ch. 22 - Prob. 7CQCh. 22 - Cells in the nervous system have a potential...Ch. 22 - a. Which directionclockwise or...Ch. 22 - Prob. 10CQCh. 22 - Prob. 11CQ
Ch. 22 - The two circuits in Figure Q22.12 use identical...Ch. 22 - The two circuits in Figure Q22.13 use identical...Ch. 22 - Prob. 14CQCh. 22 - Rank in order, from largest to smallest, the...Ch. 22 - The circuit in Figure Q22.16 has three batteries...Ch. 22 - Prob. 17CQCh. 22 - Prob. 18CQCh. 22 - Over time, atoms boil off the hot filament in an...Ch. 22 - Prob. 20CQCh. 22 - A 100 W lightbulb is brighter than a 60 W...Ch. 22 - Lightbulbs are typically rated by their power...Ch. 22 - Lightbulbs are typically rated by their power...Ch. 22 - A copper wire is stretched so that its length...Ch. 22 - The potential difference across a length of wire...Ch. 22 - Prob. 26MCQCh. 22 - A resistor connected to a 3.0 V battery dissipates...Ch. 22 - If a 1.5 V battery stores 5.0 kJ of energy (a...Ch. 22 - Figure Q22.29 shows a side view of a wire of...Ch. 22 - A person gains weight by adding fatand therefore...Ch. 22 - Prob. 31MCQCh. 22 - The current in an electric hair dryer is 10 A. How...Ch. 22 - Prob. 2PCh. 22 - Three wires meet at a junction. Wire 1 has a...Ch. 22 - When a nerve cell depolarizes, charge is...Ch. 22 - A wire carries a 15 A current. How many electrons...Ch. 22 - In a typical lightning strike, 2.5 C flows from...Ch. 22 - Prob. 7PCh. 22 - In an ionic solution, 5.0 1015 positive ions with...Ch. 22 - Prob. 9PCh. 22 - What are the values of currents IB and IC in...Ch. 22 - The currents through several segments of a wire...Ch. 22 - How much electric potential energy does 1.0 C of...Ch. 22 - What is the emf of a battery that increases the...Ch. 22 - A 9.0 V battery supplies a 2.5 mA current to a...Ch. 22 - Prob. 16PCh. 22 - An electric catfish can generate a significant...Ch. 22 - A Wire with resistance R is connected to the...Ch. 22 - Wires 1 and 2 are made of the same metal. Wire 2...Ch. 22 - Prob. 20PCh. 22 - Resistivity measurements on the leaves of corn...Ch. 22 - Prob. 22PCh. 22 - A motorcyclist is making an electric vest that,...Ch. 22 - Prob. 24PCh. 22 - A 3.0 V potential difference is applied between...Ch. 22 - Prob. 26PCh. 22 - Prob. 27PCh. 22 - Prob. 28PCh. 22 - Figure P22.29 shows the...Ch. 22 - Figure P22.30 is a...Ch. 22 - In Example 22.6 the length of a 60 W, 240 ...Ch. 22 - The electric field inside a 30-cm-long copper wire...Ch. 22 - A copper wire is 1.0 mm in diameter and carries a...Ch. 22 - Two identical lightbulbs are connected in series...Ch. 22 - Prob. 35PCh. 22 - a. What is the resistance of a 1500 W (120 V) hair...Ch. 22 - Prob. 37PCh. 22 - A 70 W electric blanket runs at 18 V. a. What is...Ch. 22 - A 60-cm-long heating wire is connected to a 120 V...Ch. 22 - An electric eel develops a potential difference of...Ch. 22 - Prob. 41PCh. 22 - A 3.0 V battery powers a flashlight bulb that has...Ch. 22 - A heating element in a toaster dissipates 900 W...Ch. 22 - Prob. 44GPCh. 22 - Prob. 45GPCh. 22 - The hot dog cooker described in the chapter heats...Ch. 22 - Air isnt a perfect electric insulator, but it has...Ch. 22 - The biochemistry that takes place inside cells...Ch. 22 - High-resolution measurements have shown that an...Ch. 22 - When an ion channel opens in a cell wall (see...Ch. 22 - The total charge a battery can supply is rated in...Ch. 22 - Prob. 52GPCh. 22 - The heating element of a simple heater consists of...Ch. 22 - Variations in the resistivity of blood can give...Ch. 22 - A 40 W (120 V) lightbulb has a tungsten filament...Ch. 22 - Prob. 56GPCh. 22 - When the starter motor on a car is engaged, there...Ch. 22 - Prob. 58GPCh. 22 - The two segments of the wire in Figure P22.59 have...Ch. 22 - Prob. 60GPCh. 22 - Prob. 61GPCh. 22 - Prob. 62GPCh. 22 - Prob. 63GPCh. 22 - Prob. 64GPCh. 22 - An immersion heater used to boil water for a...Ch. 22 - The graph in Figure P22.66 shows the current...Ch. 22 - Its possible to estimate the percentage of fat in...Ch. 22 - If you touch the two terminals of a power supply...Ch. 22 - The average resistivity of the human body (apart...Ch. 22 - MCAT-Style Passage Problems Lightbulb Failure...Ch. 22 - MCAT-Style Passage Problems Lightbulb Failure...Ch. 22 - MCAT-Style Passage Problems Lightbulb Failure...Ch. 22 - MCAT-Style Passage Problems Lightbulb Failure...
Additional Science Textbook Solutions
Find more solutions based on key concepts
A solid ball of mass M and radius R is spinning with angular velocity 0 about a horizontal axis. It drops verti...
Essential University Physics: Volume 1 (3rd Edition)
The ratio of the kinetic energy to the potential energy of a simple harmonic oscillator when the displacement i...
Physics (5th Edition)
The pV-diagram of the Carnot cycle.
Sears And Zemansky's University Physics With Modern Physics
30, (II) A scuba diver and her gear displace a volume of 69.6 L and have a total mass of 72.8 kg. (a) What is t...
Physics: Principles with Applications
The Sun’s position in the Milky Way is shown in the picture above. What is the approximate distance from the Su...
Lecture- Tutorials for Introductory Astronomy
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
- The quantity of charge q (in coulombs) that has passed through a surface of area 2 cm? varies with time according to the equation q= 2t 3+ 4t - 6, where t is in seconds. What is the value of the current density (A/m²) at t= 6.0 s? 1. O11.0 × 105 2. O 14.9 × 10° 3. O 19.4 × 10° 4. O 24.5 × 10° 5. O30.2 × 105arrow_forwardWhale and Kanmuro are two islands located in the Chimera archipelago. These two are separated by a distance of 24 miles. A power link is to be established between them. The power link delivers a maximum power of 600 MW at full capacity with an operating voltage of 500 kV. a. Solve for the current at full power capacity (Ans: I = 1200 A) b. Solve for the resistivity of the cable, assuming a conductor diameter of 2.5 cm |(Ans: p = 5.296x10-6 2 · m)arrow_forwardConsider a wire made of copper with conductivity 6.0 × 107 Ω-1m-1, which has a circular cross-section of radius 0.79 mm. In a particular circuit, this wire carries a current of 4.5 A. a. What is the electric field, in volts per meter, inside this wire? b. If we replace this wire with a gold one of the same size, with conductivity 4.1 × 107 Ω-1m-1, what will the electric field in the wire be?arrow_forward
- A 22 gauge aluminum wire is connected in series to a 30 gauge copper wire. Each of the wires is 0.75 m long. A current of 0.300 A flows through the wires. The number density of charges in aluminum is 2.1 × 1029 m−3 and in copper it is 1.1 × 1029 m−3. The charge associated with each charge is equal to the electron’s charge (though it is really a hole in Aluminum, and so positive in that case...) The gauges given in the problem refer to the American Wire Gauge Standard. You will need to look up the diameter of each of the specified gauges (charts of gauge specifications are all over the web and also on our PHY 205 Moodle page.) Other data that you need for this problem can be found in tables in your text. (a) Find the current density in each wire. (b) Find the drift speed of the electrons in each wire. (c) What is the voltage across each wire? (d) Explain how it is that copper, which has a lower density of conduction electrons than aluminum, can have a higher conductivity than aluminum.arrow_forwardA high voltage transmission line of diameter 3.73 cm and length 3.76189 km carries a steady current of 1.9 x103 A. If the conductor is copper with a free charge density of 6 x 1028 electrons/m3, how long (in seconds ) does it take one electron to travel the full length of the cable? (e = 1.6 x 10−19 C).For this problem use scientific/exponential notation to represent your answer. Eg., -0.0001 can be written as 1.0e-4 or as 1.0E-4. Spaces are not allowed.arrow_forwarda. What is the current (in A) when a typical static charge of 0.260 µC moves from your finger to a metal doorknob in 4.50 µs? b.During open-heart surgery, a defibrillator can be used to bring a patient out of cardiac arrest. The resistance of the path is 540 Ω and an 11.6 mA current is needed. What voltage should be applied (in V)?arrow_forward
- A current of 2 A flows through a gold wire with a radius of 3 cm and a length of 15 m. There are 3.50x1020 free electrons/m3 in gold. What is the magnitude of the drift velocity of the free electrons in the wire? -2 т O 1.783x10 -2 т 5.350x10 S О 12.609 т 50.455 marrow_forwardThe current in a wire varies with time according to the relation I = 55 A - (0.65 A/s²)t². For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Current density and drift velocity in a wire. How many coulombs of charge pass a cross section of the wire in the time interval between t = 0 and t = 8.5 s? Express your answer in coulombs. Q= Submit Part B I = ΑΣΦ Submit Request Answer What constant current would transport the same charge in the same time interval? Express your answer in amperes. ΑΣΦ ? Request Answer ? Aarrow_forwardA 580 mm long tungsten wire, with a 0.048 mm diameter circular cross section, is wrapped around in the shape of a coil and used as a filament in an incandescent light bulb. When the light bulb is connected to a battery, a current of 0.536 A is measured through the filament. Tungsten has a resistivity of 4.9 x 10-8 Ohms x m. How many electrons pass through this filament in 5 seconds? What is the resistance of this filament? What is the voltage of the battery that would produce this current in the filament?arrow_forward
- Two batteries A and B are connected in parallel and load of 10 ohms isconnected across their terminals. A has an emf of 12 V and an internalresistance of 2 ohms. B has an emf of 8 volts and an internal resistance of 1ohm. Determine the following. a. the magnitude and direction of the current aupplied by the 12 V battery (Use Kirchoff's Law) b. The magnitude and direction of the current supplied by the 8V battery (Use Kirchoff's Law) c. The potential difference across the external resistance.arrow_forwardA 22 gauge aluminum wire is connected in series to a 30 gauge copper wire. Each of the wires is 0.75 m long. A current of 0.300 A flows through the wires. The number density of charges in aluminum is 2.1 × 1029 m-3 and in copper it is 1.1 x 1029 m-3. The charge associated with each charge is equal to the electron's charge (though it is really a hole in Aluminum, and so positive in that case...) The gauges given in the problem refer to the American Wire Gauge Standard. You will need to look up the diameter of each of the specified gauges. Other data that you need for this problem can be found in tables in your text. (a) Find the current density in each wire. (b) Find the drift speed of the electrons in each wire. (c) What is the voltage across each wire? (d) Explain how it is that copper, which has a lower density of conduction electrons than aluminum, can have a higher conductivity than aluminum.arrow_forwardA current of 2 A flows through a gold wire with a radius of 3 cm and a length of 15 m. There are 3.50x1020 free electrons/m³ in gold. What is the current density in the wire? C O 1 8•m2 C S•m2 707 s•m2 2829 S•m2arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
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