PPT-7.2 – Electric Force

Electric Force Force a push or a pull Contact Forces a force when objects are touching Actionata distance Forces a force can be applied without objects touching Laws of Static Electricity. The Origin of Electricity. The electrical nature of matter comes from atomic structure. Nucleus. – . made up of . protons. and . neutrons. Most of the mass of the atom is contained in the nucleus. How do you find the area of a triangle?. This was the most missed question on the test…. DO WORK. STOP. Objectives. Investigate the majesty of electricity so you can soon control lightning like Zeus.. October 2012. Objectives.. To understand the basic properties of electric charge.. To describe the difference between conductors and insulators.. To calculate the electric force using . Coulumb’s. Law.. Vectors. &. Electric . Fields. Three Charges. Q=-3.5 . m. C. Q=+7.0. m. C. Q=+2.0. m. C. 6 m. 4 m. Calculate force on +2. m. C charge due to other two charges. Calculate force from +7. m. C . charge. . 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. Physics 208. Dr. Tatiana Erukhimova. Lecture 4. The approximation becomes . exact. if we let the number of chunks go to infinity and the volume of each chunk go to zero – the sum then becomes an integral:. 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.. Lectures. will cover . Chapter . 20. (Electric Charge) . and start . Chapter . 22 (Electric Potential). Please note: . lecture slides . and . scans of the textbook chapters . are available on Blackboard. . 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. By: Raiden Foris. The attractive or repulsive interaction between any two charged objects is an . electric force. . . video. What is electric force?. Coulomb’s law. The symbol . k. is a proportionality constant known as the Coulomb's law constant. The value of this constant is dependent upon the medium that the charged objects are immersed in. In the case of air, the value is approximately 9.0 x 10^9 N • m^2 / C^2. . 3.1 . Electric Charges, Fields, and Potentials . 3.2 . Capacitance . 3.2.1 . Capacitor . 3.2.2 . Dielectric Constant . 3.3 Magnetism . 3.3.1 . Faraday’s . Law. 3.3.2 Solenoid. 3.3.3 . Toroid. 3.3.4 Permanent . 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.. 4. . Two protons in an atomic nucleus are typically separated by a distance of 2 × 10. –. 15. m. The electric repulsion force between the protons is huge, but the attractive nuclear force is even stronger and keeps the nucleus from bursting apart. What is the magnitude of the electric force between two protons separated by 2.00 × 10.