Conceptual Physics: The High School Physics Program
9th Edition
ISBN: 9780133647495
Author: Paul G. Hewitt
Publisher: Prentice Hall
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Question
Chapter 32, Problem 14A
a.
To determine
To explain: The reason for considering metals as good conductors.
a.
Expert Solution
Explanation of Solution
Introduction: Materials can be divided into good conductors and Insulators. Good conductors are those, through which electricity can pass, Insulators are those , through which
Metals are good conductor of electricity because; metals have a large number of free electrons to
b.
To determine
To explain: The reason for considering materials such as rubber, glass as good insulators.
b.
Expert Solution
Explanation of Solution
Introduction: Materials can be divided into good conductors and Insulators. Good conductors are those, through which electricity can pass, Insulators are those, through which electric current can not pass.
Materials such as rubber, glass are good insulators because they don’t have free electrons to conduct electricity. As there is no free electrons, so flow of electric charge is not possible.
Chapter 32 Solutions
Conceptual Physics: The High School Physics Program
Ch. 32 - Which force—gravitational or electrical—repels...Ch. 32 - Gravitational forces depend on the property called...Ch. 32 - How do protons and electrons differ in their...Ch. 32 - Prob. 4ACh. 32 - Which has more mass—a proton or an electron?Ch. 32 - Prob. 6ACh. 32 - a. How do like charges behave toward each other?...Ch. 32 - How does a negative ion differ from a positive...Ch. 32 - What does it mean to say that charge is conserved?Ch. 32 - a. If electrons are rubbed from cats fur onto a...
Ch. 32 - a. How is Coulombs law similar to Newtons law of...Ch. 32 - The SI unit of mass is the kilogram. What is the...Ch. 32 - The proportionality constant k in Coulombs law is...Ch. 32 - Prob. 14ACh. 32 - Prob. 15ACh. 32 - Which two methods of charging objects involve...Ch. 32 - Which method of charging objects involves no...Ch. 32 - What is lightning?Ch. 32 - What is the function of a lightning rod?Ch. 32 - What does it mean to say an object is electrically...Ch. 32 - When a charged object polarizes another, why is...Ch. 32 - What is an electric dipole?Ch. 32 - The three pairs of metal spheres below are all the...Ch. 32 - Three separate pairs of uncharged metal spheres...Ch. 32 - Indicated below are pairs of electric charges in...Ch. 32 - Shown below are three separate pairs of point...Ch. 32 - Electrical forces between charges are enormous...Ch. 32 - Two equally charged particles exert equal forces...Ch. 32 - How will the forces between two charged particles...Ch. 32 - If electrons were positive and protons negative,...Ch. 32 - If you scuff electrons from your hair onto a comb,...Ch. 32 - The five thousand billion billion freely moving...Ch. 32 - If a glass rod that is rubbed with a plastic dry...Ch. 32 - Why do clothes often cling together after tumbling...Ch. 32 - Why will dust be attracted to a CD wiped with a...Ch. 32 - When one material is rubbed against another,...Ch. 32 - Plastic wrap becomes electrically charged when...Ch. 32 - Explain how an object that is electrically neutral...Ch. 32 - An electroscope is a simple device. It consists of...Ch. 32 - Would it be necessary for a charged object to...Ch. 32 - Figure 32.12 shows a negatively charged plastic...Ch. 32 - When a car is moved into a painting chamber, a...Ch. 32 - Imagine a proton at rest a certain distance from a...Ch. 32 - Consider a pair of particles with equal charges....Ch. 32 - A pair of isolated protons will fly apart from...Ch. 32 - The charge on an electron is 1.61019C. How many...Ch. 32 - By how much is the electrical force between a pair...Ch. 32 - Two pellets, each with a charge of 1C, are...Ch. 32 - Two identical metal spheres are brought together...Ch. 32 - Consider two small charged objects, one with a...Ch. 32 - Proportional reasoning: Consider a pair of...Ch. 32 - Two spherical inflated rubber balloons each have...
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