Conceptual Physics: The High School Physics Program
9th Edition
ISBN: 9780133647495
Author: Paul G. Hewitt
Publisher: Prentice Hall
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 34, Problem 12A
What is Ohm’s law?
Expert Solution & Answer
To determine
To Explain: Ohm’s law.
Explanation of Solution
Introduction:
The flow of charges per unit time is called current. Charges flow when there is a difference between the electric potential of the two ends of the conducting wire.
As per Ohm’s law, the current
Chapter 34 Solutions
Conceptual Physics: The High School Physics Program
Ch. 34 - What condition is necessary for the flow of heat?...Ch. 34 - What is meant by the term potential? What is meant...Ch. 34 - What condition is necessary for the sustained flow...Ch. 34 - What is electric current?Ch. 34 - What is an ampere?Ch. 34 - What is voltage?Ch. 34 - How many joules per coulomb are given to charges...Ch. 34 - Does charge flow through a circuit or into a...Ch. 34 - Does voltage flow through a circuit, or is voltage...Ch. 34 - What is electric resistance?
Ch. 34 - Is electric resistance greater in a short fat wire...Ch. 34 - What is Ohms law?Ch. 34 - If the resistance of a circuit remains constant...Ch. 34 - If the voltage impressed across a circuit is...Ch. 34 - How does wetness affect the resistance of your...Ch. 34 - Why is it that a bird can perch without harm on a...Ch. 34 - What is the function of the third prong in a...Ch. 34 - Distinguish between DC and AC. Which is produced...Ch. 34 - A diode converts AC to pulsed DC. What electric...Ch. 34 - What are the roles of a diode and a capacitor in...Ch. 34 - What is a typical 'drift' speed of electrons that...Ch. 34 - From where do the electrons originate that flow in...Ch. 34 - What is power?Ch. 34 - Which of these is a unit of power and which is a...Ch. 34 - How many amperes flow through a 60-watt bulb when...Ch. 34 - Rank the circuits below according to the...Ch. 34 - The bulbs shown below are identical. An ammeter is...Ch. 34 - All bulbs are identical in the circuits shown...Ch. 34 - In each of the circuits shown below, a voltmeter...Ch. 34 - All bulbs are identical in the circuit shown to...Ch. 34 - Calculate the current where 10 coulombs of charge...Ch. 34 - Calculate the current of a lightning bolt that...Ch. 34 - Calculate the current in a toaster that has a...Ch. 34 - Calculate the current in the coiled heating...Ch. 34 - Electric socks, popular in cold weather, have a...Ch. 34 - How much current moves through your fingers...Ch. 34 - Calculate the power supplied to an electric...Ch. 34 - Is this label on a household product cause for...Ch. 34 - Do an ampere and a volt measure the same thing, or...Ch. 34 - What happens to the brightness of light emitted by...Ch. 34 - In terms of heating, why are thick wires rather...Ch. 34 - Why is it important that the resistance of an...Ch. 34 - Why will an electric drill operating on a very...Ch. 34 - Your tutor tells you that an ampere and a volt...Ch. 34 - Does more current flow out of a battery than into...Ch. 34 - A simple lie detector consists of an electric...Ch. 34 - Only a small fraction of the electric energy fed...Ch. 34 - Will a lamp with a thick filament draw more...Ch. 34 - Prob. 49ACh. 34 - Will the current in a lightbulb connected to 220 V...Ch. 34 - Which will do more damage—plugging a 110-V...Ch. 34 - If current of one- or two-tenths of an ampere were...Ch. 34 - What is the effect on current if both the voltage...Ch. 34 - In 60-Hz alternating current, how many times per...Ch. 34 - If electrons flow very slowly through a circuit,...Ch. 34 - What unit is represented by (a) joule per coulomb,...Ch. 34 - Two lightbulbs designed for 120-V use are rated at...Ch. 34 - A cars headlights dissipate 40 W on low beam and...Ch. 34 - How much current, in amperes, is in a lightning...Ch. 34 - How much charge flows in a pocket calculator each...Ch. 34 - How much voltage is required to make 2 amperes...Ch. 34 - Use the relationship power=currentvoltage to find...Ch. 34 - The current driven by voltage V in a circuit of...Ch. 34 - Use the equation just derived and show that when a...Ch. 34 - The power of an electric circuit is given by the...Ch. 34 - An electric heater has a heating element of...Ch. 34 - Calculate the resistance of the filament in a...Ch. 34 - A lightbulb is marked ' 120 V, 60 W.' a. What...Ch. 34 - A microwave oven is marked '120 V, 1100 w.' a. How...Ch. 34 - A typical car headlight may put out 50 watts at 12...Ch. 34 - Suppose that an ammeter inserted in series in a...Ch. 34 - The wattage marked on a lightbulb is not an...Ch. 34 - The resistance of a certain wire is 10 ohms. a....Ch. 34 - Calculate the power dissipated in a toaster that...Ch. 34 - Calculate the yearly cost of running a 5-W...
Additional Science Textbook Solutions
Find more solutions based on key concepts
In tomato plants, purple leaf color is controlled by a dominant allele A, and green leaf by a recessive allele ...
Genetic Analysis: An Integrated Approach (3rd Edition)
Which of the following statements about the general functions of the nervous system is false?
The three primary...
Human Anatomy & Physiology (2nd Edition)
Why are BSL-4 suits pressurized? Why not just wear tough regular suits?
Microbiology with Diseases by Body System (5th Edition)
What type of cut would separate the brain into anterior and posterior parts?
Anatomy & Physiology (6th Edition)
WHAT IF? As a cell begins the process of dividing, its chromosomes become shorter, thicker, and individually vi...
Campbell Biology in Focus (2nd Edition)
6. Harbor seals, like many animals, determine the direction from which a sound is coming by sensing the differe...
College Physics: A Strategic Approach (3rd Edition)
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
- Please help by: Use a free body diagram Show the equations State your assumptions Show your steps Box your final answer Thanks!arrow_forwardBy please don't use Chatgpt will upvote and give handwritten solutionarrow_forwardA collection of electric charges that share a common magnitude q (lower case) has been placed at the corners of a square, and an additional charge with magnitude Q (upper case) is located at the center of that square. The signs of the charges are indicated explicitly such that ∣∣+q∣∣∣∣+Q∣∣=∣∣−q∣∣==∣∣−Q∣∣=qQ Four unique setups of charges are displayed. By moving one of the direction drawings from near the bottom to the bucket beside each of the setups, indicate the direction of the net electric force on the charge with magnitude Q, located near the center, else indicate that the magnitude of the net electric force is zero, if appropriate.arrow_forward
- A number of electric charges has been placed at distinct points along a line with separations as indicated. Two charges share a common magnitude, q (lower case), and another charge has magnitude Q(upper case). The signs of the charges are indicated explicitly such that ∣∣+q∣∣∣∣+Q∣∣=∣∣−q∣∣==∣∣−Q∣∣=qQ Four different configurations of charges are shown. For each, express the net electric force on the charge with magnitude Q (upper case) as F⃗E=FE,xî where the positive x direction is towards the right. By repositioning the figures to the area on the right, rank the configurations from the most negative value to the most positive value of FE,x.arrow_forwardFor each part make sure to include sign to represent direction, with up being positive and down being negative. A ball is thrown vertically upward with a speed of 30.5 m/s. A) How high does it rise? y= B) How long does it take to reach its highest point? t= C) How long does it take the ball return to its starting point after it reaches its highest point? t= D) What is its velocity when it returns to the level from which it started? v=arrow_forwardFour point charges of equal magnitude Q = 55 nC are placed on the corners of a rectangle of sides D1 = 27 cm and D2 = 11cm. The charges on the left side of the rectangle are positive while the charges on the right side of the rectangle are negative. Use a coordinate system where the positive y-direction is up and the positive x-direction is to the right. A. Which of the following represents a free-body diagram for the charge on the lower left hand corner of the rectangle? B. Calculate the horizontal component of the net force, in newtons, on the charge which lies at the lower left corner of the rectangle.Numeric : A numeric value is expected and not an expression.Fx = __________________________________________NC. Calculate the vertical component of the net force, in newtons, on the charge which lies at the lower left corner of the rectangle.Numeric : A numeric value is expected and not an expression.Fy = __________________________________________ND. Calculate the magnitude of the…arrow_forward
- Point charges q1=50.0μC and q2=-35μC are placed d1=1.0m apart, as shown. A. A third charge, q3=25μC, is positioned somewhere along the line that passes through the first two charges, and the net force on q3 is zero. Which statement best describes the position of this third charge?1) Charge q3 is to the right of charge q2. 2) Charge q3 is between charges q1 and q2. 3) Charge q3 is to the left of charge q1. B. What is the distance, in meters, between charges q1 and q3? (Your response to the previous step may be used to simplify your solution.)Give numeric value.d2 = __________________________________________mC. Select option that correctly describes the change in the net force on charge q3 if the magnitude of its charge is increased.1) The magnitude of the net force on charge q3 would still be zero. 2) The effect depends upon the numeric value of charge q3. 3) The net force on charge q3 would be towards q2. 4) The net force on charge q3 would be towards q1. D. Select option that…arrow_forwardThe magnitude of the force between a pair of point charges is proportional to the product of the magnitudes of their charges and inversely proportional to the square of their separation distance. Four distinct charge-pair arrangements are presented. All charges are multiples of a common positive charge, q. All charge separations are multiples of a common length, L. Rank the four arrangements from smallest to greatest magnitude of the electric force.arrow_forwardA number of electric charges has been placed at distinct points along a line with separations as indicated. Two charges share a common magnitude, q (lower case), and another charge has magnitude Q (upper case). The signs of the charges are indicated explicitly such that ∣∣+q∣∣∣∣+Q∣∣=∣∣−q∣∣==∣∣−Q∣∣=qQ Four different configurations of charges are shown. For each, express the net electric force on the charge with magnitude Q (upper case) as F⃗E=FE,xî where the positive x direction is towards the right. By repositioning the figures to the area on the right, rank the configurations from the most negative value to the most positive value of FE,x.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSONIntroduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningLecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-WesleyCollege Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
University Physics (14th Edition)
Physics
ISBN:9780133969290
Author:Hugh D. Young, Roger A. Freedman
Publisher:PEARSON
Introduction To Quantum Mechanics
Physics
ISBN:9781107189638
Author:Griffiths, David J., Schroeter, Darrell F.
Publisher:Cambridge University Press
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:9780321820464
Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...
Physics
ISBN:9780134609034
Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:PEARSON
DC Series circuits explained - The basics working principle; Author: The Engineering Mindset;https://www.youtube.com/watch?v=VV6tZ3Aqfuc;License: Standard YouTube License, CC-BY