PPT-Electric Charges

A little chemistry All matter Atoms are is m a de up of ato m s made of pr o ton s n e utr o ns a n d ele c tro n s . Physics 2415 Lecture 7. Michael Fowler, UVa. Today’s Topics. Field lines and . equipotentials. Partial derivatives. Potential along a line from two charges. Electric breakdown of air. Potential Energies Just Add. 11.1. All matter is made up atoms. Atoms contain smaller particles: protons, neutrons, and electrons.. All matter is made up atoms. Atoms contain smaller particles: protons, neutrons, and electrons.. macroscopic (average) electric field. inside matter when an external . E. field is applied?. How is charge displaced when an electric field is applied? i.e. what are . induced currents and densities. Atoms, and Static Electricity. circuit. electric . current. .. electromagnet . resistance. .. electric . charge. .. electric . force. .. conductor. .. electric . circuit. . insulator . resistor. .. Vocabulary. Concepts to Learn Today. Which charges attract and repel each other. Everything is electric!. Charges can be separated between two objects. Charge is always conserved. From the sticky tape investigation, we can conclude that there are two different . 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. Electric Charge. All matter is made up of atoms. Atoms contain. Protons ( ). Neutrons (0). Electrons (-). Law of Electric Charges. The law of electric charges states . that like charges repel. , and . -. -. -. -. -. -. -. -. d. q. -q. We investigate the dipole properties for various reasons:. -as an important example for the concept of superposition of electric fields. and the concept of field lines. electron cloud. and . nucleus. in opposite directions: . electric dipole. .. An atom is said to be . polarized. when its . electron cloud. has been shifted by the . influence of an external charge. 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.. 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.