Electrical Charges, Conservation of Charge, and Transfer of Charge Coulomb’s law Electric Field Electric Potential Capacitors and Dielectrics

Section Learning Objectives By the end of this section, you will be able to do the following: Section Key Terms capacitor dielectric Capacitors Consider again the X-ray tube discussed in the previous sample problem. How can a uniform electric field be produced?…

Section Learning Objectives By the end of this section, you will be able to do the following: Section Key Terms electric potential electric potential energy As you learned in studying gravity, a mass in a gravitational field has potential energy, which…

Section Learning Objectives By the end of this section, you will be able to do the following: Section Key Terms electric field test charge You may have heard of a force field in science fiction movies, where such fields apply forces at…

Section Learning Objectives By the end of this section, you will be able to do the following: Section Key Terms Coulomb’s law inverse-square law More than 100 years before Thomson and Rutherford discovered the fundamental particles that carry positive and…

Section Learning Objectives By the end of this section, you will be able to do the following: Section Key Terms conduction conductor electron induction insulator law of conservation of charge polarization proton Electric Charge You may know someone who has…

Figure 18.1 This child’s hair contains an imbalance of electrical charge (commonly called static electricity), which causes it to stand on end. The sliding motion stripped electrons away from the child’s body, leaving him with an excess of positive charges, which repel each…