Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN: 9781133939146
Author: Katz, Debora M.
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 28, Problem 14PQ
(a)
To determine
The estimation of time would take for an imaginary positive charge to make its way through the length of the wire.
(b)
To determine
The comparison of answer in part (a) to the amount of time it takes before the light appears.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A. Solve in complete solution
a. A current of 300 mA flows for 5 minutes. How much charge has passed?
b. A current of 2.0 A flows for 25 s through a small electric motor. How much charge has passed?
c. A charge of 18 C passes through the filament of a car headlamp bulb im 5 s. What is the current?
d. Solve and complete the given table. Show your solution. (The table is on the image being captured.)
B. Solve each problem in complete solution.
1. Calculate the (a) resistivity and the (b) conductivity of a material that has a length of 20 m and a cross-sectional area of 8×10^-8 m² and a resistance (R) of 9 Ω.
2. The resistance of a wire of length 20 m is 5 ohm. If the area of cross section of the wire is 5×10^-7 m², determine its (a) resistivity, and (b) conductivity.
Imagine that we connect the terminals of a 1.5 V battery with a single wire 30 centimeters long.
a) What is the electric field magnitude in the wire when dynamic equilibrium is established and why?
b) Does this field strength depend on the wire's conductivity and/or its cross-sectional area?
c) Does the total current flowing in the wire in these circumstances depend on the wire's conductivity and/or its cross-sectional area? Explain.
Consider the following.
(a) A rectangular block has the dimensions ℓ ✕ w ✕ h. When a battery with a voltage V is connected across the end faces as shown in the left figure above, a current I1 flows through the circuit. If the same battery is connected across the top and bottom faces of the block as shown in the right figure, what is the current I2 that flows through the circuit? Give your answer in terms of I1. (Use the following as necessary: ℓ, w, h, I1) I2 = ?
(b) Suppose ℓ = 4.20 cm, w = 2.2 cm, and h = 1.80 cm; the battery voltage is 1.5 V and I1 = 2.50 A, determine the value of I2. (A)
Chapter 28 Solutions
Physics for Scientists and Engineers: Foundations and Connections
Ch. 28.1 - Prob. 28.1CECh. 28.2 - Prob. 28.2CECh. 28.3 - Prob. 28.3CECh. 28.5 - When a lightbulb burns out, its filament breaks so...Ch. 28.6 - A battery with terminal potential is connected to...Ch. 28.7 - A battery of terminal potential is connected to a...Ch. 28 - Prob. 1PQCh. 28 - Prob. 2PQCh. 28 - Prob. 3PQCh. 28 - Prob. 4PQ
Ch. 28 - Prob. 5PQCh. 28 - Prob. 6PQCh. 28 - Prob. 7PQCh. 28 - Prob. 8PQCh. 28 - Prob. 9PQCh. 28 - Prob. 10PQCh. 28 - Prob. 11PQCh. 28 - Prob. 12PQCh. 28 - Prob. 13PQCh. 28 - Prob. 14PQCh. 28 - The current in a wire varies with time (measured...Ch. 28 - Prob. 16PQCh. 28 - The amount of charge that flows through a copper...Ch. 28 - Prob. 18PQCh. 28 - Prob. 19PQCh. 28 - Prob. 20PQCh. 28 - Prob. 21PQCh. 28 - Prob. 22PQCh. 28 - A copper wire that is 2.00 mm in radius with...Ch. 28 - Prob. 24PQCh. 28 - Prob. 25PQCh. 28 - Prob. 26PQCh. 28 - What is the electric field in an aluminum wire if...Ch. 28 - Prob. 28PQCh. 28 - Prob. 29PQCh. 28 - Prob. 30PQCh. 28 - Prob. 31PQCh. 28 - Prob. 32PQCh. 28 - Two concentric, metal spherical shells of radii a...Ch. 28 - Prob. 34PQCh. 28 - Prob. 35PQCh. 28 - Prob. 36PQCh. 28 - Prob. 37PQCh. 28 - A lightbulb is connected to a variable power...Ch. 28 - Prob. 39PQCh. 28 - Prob. 40PQCh. 28 - Prob. 41PQCh. 28 - Prob. 42PQCh. 28 - Prob. 43PQCh. 28 - A Two wires with different resistivities, 1 and 2,...Ch. 28 - A copper and a gold wire are supposed to have the...Ch. 28 - Gold bricks are formed with the dimensions 7358134...Ch. 28 - Prob. 47PQCh. 28 - Prob. 48PQCh. 28 - Prob. 49PQCh. 28 - Prob. 50PQCh. 28 - Prob. 51PQCh. 28 - Prob. 52PQCh. 28 - Prob. 53PQCh. 28 - Prob. 54PQCh. 28 - A two-slice bread toaster consumes 850.0 W of...Ch. 28 - Prob. 56PQCh. 28 - Prob. 57PQCh. 28 - Prob. 58PQCh. 28 - Prob. 59PQCh. 28 - Prob. 60PQCh. 28 - Prob. 61PQCh. 28 - Prob. 62PQCh. 28 - Prob. 63PQCh. 28 - Prob. 64PQCh. 28 - Prob. 65PQCh. 28 - Prob. 66PQCh. 28 - Prob. 67PQCh. 28 - Prob. 68PQCh. 28 - Prob. 69PQCh. 28 - Prob. 70PQCh. 28 - Prob. 71PQCh. 28 - Prob. 72PQCh. 28 - Prob. 73PQCh. 28 - Prob. 74PQCh. 28 - Review When a metal rod is heated, its resistance...Ch. 28 - Prob. 76PQCh. 28 - Prob. 77PQCh. 28 - Prob. 78PQCh. 28 - Prob. 79PQCh. 28 - Prob. 80PQCh. 28 - Prob. 81PQCh. 28 - A conducting material with resistivity is shaped...
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. Studies have found that a typical lightning flash is about 300 million Volts. What is the electric field between the cloud and the ground? B. What is the surface charge density on the ground? C. If the cloud extended over 1 km long and 1 km wide, how much charge does the cloud has? C1. If that amount of charge come to the ground in 1 second, what is the current produced by the lightning?arrow_forwarda) Find the current in each part of the curcuit given in the figure. b) What is the potential difference between points b and c? c) What is the absolute potential at point b, assuming the potential at a is zero?arrow_forwardA proton is accelerated across a 240 V voltage difference. a) What will its speed then be? b) How close does it get to another stationary proton before it turns around and shoots back?arrow_forward
- A 14-cmcm-long nichrome wire is connected across the terminals of a 1.5 VV battery. Part A What is the electric field inside the wire? Express your answer with the appropriate units. Activate to select the appropriates template from the following choices. Operate up and down arrow for selection and press enter to choose the input value typeActivate to select the appropriates symbol from the following choices. Operate up and down arrow for selection and press enter to choose the input value type E� = nothingnothing SubmitRequest Answer Part B What is the current density inside the wire? Express your answer with the appropriate units. Activate to select the appropriates template from the following choices. Operate up and down arrow for selection and press enter to choose the input value typeActivate to select the appropriates symbol from the following choices. Operate up and down arrow for selection and press…arrow_forwardSOLVE THE FOLLOWING: a. How many electrons pass a point in 5 s if a constant current of 8 A is maintained in a conductor?b. How many electrons pass a point every second in a wire carrying a current of 20 A? How much time is needed to transport 40C of charge past this point?c. If 600 C of charge passes a given point in 3 s, what is the electric current in amperes?arrow_forwardA fully charged capacitor with a voltage of 120 V is discharged through a resistor. (a) What is the voltage across the capacitor at the end of five time constants?(b) At this time, what is the voltage across the resistor?arrow_forward
- Consider the currents in the figure. a. What equation do you get when you apply Kirchhoff's junction rule at point a?arrow_forwardTwo large parallel plates are separated by a 0.015-m gap. The plates are connected to the terminals of a 12-V battery, which remains connected. (a) What is the strength of the electric field in the region between the plates? (b) What happens to the strength of the electric field if the gap between the plates is reduced to 0.010 m? Justify your answer. (c) Does charge flow through the battery as the separation between the plate is being reduced? Explain your answer.arrow_forward(a) A defibrillator passes 12.0 A of current through the torso of a person for 0.0100 s. How much charge moves? (b) How many electrons pass through the wires connected to the patient?arrow_forward
- (a) A defibrillator connected to a patient passes 11.0 A of current through the torso for 0.0600 s. How much charge moves? _____C(b) How many electrons pass through the wires connected to the patient? ______electronsarrow_forward(A) Two identical resistors connected in series have an equivalent resistance of 4 ohms. What is theresistance of each of these two resistor?(B) If a 12 volt battery is connected to these two resistors in series, what is the electric current flowingthrough these two resistors?© How much is the voltage difference (potential difference) across one of these two resistor?arrow_forwardPart A: What is the magnitude of the current in the 11 Ω resistor in (Figure 1)? Part B: What is the direction of the current in the 11 Ω resistor in (Figure 1)?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College
Glencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
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