PPT-Physics 2112 Unit 7: Conductors and Capacitance

Todays Concept Conductors Capacitance Electricity amp Magnetism Lecture 7 Slide 1 THERE ARE ONLY THREE THINGS YOU NEED TO KNOW TO DO ALL OF HOMEWORK 1 E 0 within the material of a conductor. Unit 15. Today’s Concept:. . Ampere’s Law. Unit 15. , Slide . 1. Electricity & Magnetism Lecture 15, Slide . 2. We know for an infinite current carrying wire. Ampere’s Law. But what is . 2. Capacitors . Physics 2102. Gabriela Gonz. á. lez. Capacitors and Capacitance. Capacitor: any two conductors, one with charge +. Q. , other with charge -. Q. +Q. -Q. Uses: storing and releasing electric charge/energy. . AP Physics C. Applications of Electric Potential. Is there any way we can use a set of plates with an electric field? . YES!. We can make what is called a Parallel Plate Capacitor and Store Charges between the plates!. Capacitance. Capacitance is the ability of a dielectric (insulator) to store an electrical charge. Demo a large capacitor being charged and discharged. Charge = Coulomb = Q = 6.25 X 10. 18. electrons. Unit 8: Capacitors. Today’s Concept:. Capacitors in a circuits . Dielectrics. Energy in capacitors. Unit . 8, Slide . 1. Where we are…….. Unit 8, Slide . 2. C. V. Q. Q. This “. Q. ” really means that the battery has . Unit 16. Concept:. . Motional EMF. Unit 16, Slide . 1. The Plan. R. eally odd formula coming: . Unit 16, Slide . 2. Spend a bit of time seeing that it makes sense . (See . prelecture. for additional info.). Chapter 17-2 Capacitance . By: Diego Hernandez, Diego Ayala, and . Dilpreet. . Kahlon. . . Formula Chart. Formula Name. Equation. Explanation. Capacitance. C= . Capacitance is equal. to the charge on each plate divided by the potential difference.. Reading assignment. : Chapter . 26. Homework 26.1 (due Thursday, Feb. . 16). : . QQ1, QQ2, 1, 2, 3, 7, 8, 9. Homework 26.2 (due Friday, Feb. 17):. QQ3, 13, 14, 16, 17, 19, 23, 25, 27 . Homework 26.3 (due Wednesday, Feb. 22):. Today’s Concepts:. . A) Coulomb’s Law. B) Superposition. Unit . 1, Slide . 1. Why are electrons fixed and stationary in plastics?. Nothing was difficult to understand. Videos were clear and concise.. . Capacitor is a device in which electrical energy . can be stored. Ex: Photoflash in a camera. . The physics of capacitors can be generalized to other devices and to any situation involving electric fields. . What is a capacitor?. A . capacitor. can be formed from any ungrounded conductor or pair of conductors.. A very common capacitor is made from . two parallel plates . of metal.. Charging a capacitor . Today’s Concepts:. . A) Electric Flux. B) Field Lines. Gauss’ Law. Unit . 3, Slide . 1. Electric Field Lines. Unit . 3, Slide . 2. . Q. First….a comment. What the point of all this flux stuff?. behaviour. of the universe, from the very smallest scales of sub-atomic particles to the very largest in cosmology. It applies these laws to the solution of practical problems and to the development of new technologies. . II. . MOS Capacitances. These are C. gs. and C. gd. respectively. . If both the source and drain regions have the same width (W), the overlap capacitance becomes: C. gs. =C. ox. WL. D. and C. gd.