PPT-Chapter 18. Electric Charges and Forces

The electric force is one of the fundamental forces of nature Controlled electricity is the cornerstone of our modern technological society Chapter Goal To develop a basic understanding of electric phenomena in terms of charges forces and fields. Introduction to Electricity. Let review…. All matter is made up of atoms.. Atoms are made of charged subatomic particles.. Electric charge is a fundamental property of matter, similar to mass.. The electromagnetic force exists between protons and electrons. Like charges repel. Opposite charges attract.. Atoms, and Static Electricity. circuit. electric . current. .. electromagnet . resistance. .. electric . charge. .. electric . force. .. conductor. .. electric . circuit. . insulator . resistor. .. Vocabulary. These are the slides that I intended to show in class on . Wed. . . Mar. . 13, . 2013. . They contain important ideas and questions from your reading. . Due to time constraints, I was probably not able to show all the slides during class. . . HW2:Chapter 21, Pb.1, Pb.12, Pb.13, Pb.25, . Pb.31, . Pb.36,Due Wednesday, Jan.25. 21.1 Electric Charge, q or Q. Charge comes in two types. 1e = 1.6x10. -19. Coulombs (unit of charge) fundamental unit of charge. A note on usage:. The clicker slides in this booklet are meant . to be used as stimuli to encourage class discussion. . They are intended for use in a class that attempts . to help students develop a coherent and sophisticated understanding of scientific thinking.. . 21-6 The . Electric . Field. Gravitational . Field. +. -e. Electric Field. +. +. +. Units . N/C. 21-6 Electric Field. https://. www.youtube.com/watch?v=xg0Lg-uSMSQ. 21-6 Electric Field: point charge. Electric susceptibility. Displacement field in matter. Boundary conditions on fields at interfaces. What . is the . macroscopic (average) electric field. inside matter when an external . E. field is applied. © 2014 Pearson Education, Inc.. Contents of Chapter 16. Static Electricity; Electric Charge and Its Conservation. Electric . Charge in the Atom. Insulators . and Conductors. Induced . Charge; the Electroscope. 18.1 . The Origin of Electricity. The electrical nature of matter is inherent. in atomic structure.. coulombs. 18.1 . The Origin of Electricity. In nature, atoms are normally. found with equal numbers of protons. Electrostatics. Study of electric charges that can be collected and held in one place.. Ben. Franklin. Electrostatics. Demonstrate how you can pick up the paper pieces without touching them in any way with your body.. dipole,Electrostatic. Energy). Er.Somesh. Kumar Malhotra. Assistant Professor. ECE Department, UIET. Electric Dipole. An electric dipole . is formed when two . poim. charges of equal magnitude but opposite sign are separated by a small distance.. Physicists have identified four fundamental forces that account for the account all phenomena in the universe. .* . Force. Strength. Distance of action. Description. Strong nuclear. Very. strong!. Very, very Short. 17.1 . Electric charge and force. Chapter 17: electricity. Electric Charge. Electricity:. force . created by a difference in charges . (+, -) . due to gained or lost electrons. . Protons (+) are trapped in the nucleus, so moving electrons (-) are responsible for electricity. Coulomb's Law : . Coulomb's Law states that the force between two point charges Q. 1. and Q. 2. is directly proportional to the product of the charges and inversely proportional to the square of the distance between them..