Ebook University physics (13th): Part 1 presents the following content: Electric Charge and Electric Field; Gauss’s Law; Electric Potential; Capacitance and Dielectrics; Current, Resistance, and Electromotive Force; Direct-Current Circuits; . | ELECTRIC CHARGE AND ELECTRIC FIELD 21 LEARNING GOALS By studying this chapter you will learn The nature of electric charge and how we know that electric charge is conserved. How objects become electrically charged. How to use Coulomb s law to calculate the electric force between Water makes life possible The cells of your body could not function without water in which to dissolve essential biological molecules. What electrical charges. The distinction between electric properties of water make it such a good solvent force and electric field. How to calculate the electric field n Chapter 5 we mentioned the four kinds of fundamental forces. To this point I due to a collection of charges. the only one of these forces that we have examined in any detail is gravity. How to use the idea of electric field Now we are ready to examine the force of electromagnetism which encom- lines to visualize and interpret passes both electricity and magnetism. Electromagnetic phenomena will occupy electric fields. our attention for most of the remainder of this book. How to calculate the properties Electromagnetic interactions involve particles that have a property called of electric dipoles. electric charge an attribute that is as fundamental as mass. Just as objects with mass are accelerated by gravitational forces so electrically charged objects are accelerated by electric forces. The shock you feel when you scuff your shoes across a carpet and then reach for a metal doorknob is due to charged particles leaping between your finger and the doorknob. Electric currents are simply streams of charged particles flowing within wires in response to electric forces. Even the forces that hold atoms together to form solid matter and that keep the atoms of solid objects from passing through each other are fundamentally due to electric interactions between the charged particles within atoms. We begin our study of electromagnetism in this chapter by examining the nature of electric charge. We ll find
