Learning Objectives By the end of this section, you will be able to: When a free positive charge qq is accelerated by an electric field, such as shown in Figure 19.2, it is given kinetic energy. The process is analogous to an object…
Figure 19.1 Automated external defibrillator unit (AED) (credit: U.S. Defense Department photo Sgt. Suzanne M. Day) Chapter Outline 19.1 Electric Potential Energy: Potential Difference 19.2 Electric Potential in a Uniform Electric Field 19.3 Electrical Potential Due to a Point Charge 19.4 Equipotential Lines 19.5 Capacitors and Dielectrics…
Static Electricity and Charge: Conservation of Charge Conductors and Insulators Conductors and Electric Fields in Static Equilibrium Coulomb’s Law Electric Field: Concept of a Field Revisited Electric Field Lines: Multiple Charges Electric Forces in Biology Applications of Electrostatics
Learning Objectives By the end of this section, you will be able to: The study of electrostatics has proven useful in many areas. This module covers just a few of the many applications of electrostatics. The Van de Graaff Generator Van de…
Learning Objectives By the end of this section, you will be able to: Classical electrostatics has an important role to play in modern molecular biology. Large molecules such as proteins, nucleic acids, and so on—so important to life—are usually electrically…
Learning Objectives By the end of this section, you will be able to: Drawings using lines to represent electric fields around charged objects are very useful in visualizing field strength and direction. Since the electric field has both magnitude and direction, it…
Learning Objectives By the end of this section, you will be able to: Contact forces, such as between a baseball and a bat, are explained on the small scale by the interaction of the charges in atoms and molecules in…
Learning Objectives By the end of this section, you will be able to: Figure 18.24 This NASA image of Arp 87 shows the result of a strong gravitational attraction between two galaxies. In contrast, at the subatomic level, the electrostatic attraction between…
Learning Objectives By the end of this section, you will be able to: Conductors contain free charges that move easily. When excess charge is placed on a conductor or the conductor is put into a static electric field, charges in the conductor quickly…
Learning Objectives By the end of this section, you will be able to: Figure 18.10 This power adapter uses metal wires and connectors to conduct electricity from the wall socket to a laptop computer. The conducting wires allow electrons to move freely…