February 10 1CAPACITORS A. Great B. Good C. Not So Good D. Bad E. Don’t turn your back!

Slides:



Advertisements
Similar presentations
Electrostatics, Circuits, and Magnetism 4/29/2008
Advertisements

Capacitance October 6, 2012.
Chapter 16 Electric Energy and Capacitance
1/29/07184 Lecture 121 PHY 184 Spring 2007 Lecture 12 Title: Capacitor calculations.
Capacitance and Dielectrics
February 16, 2010 Potential Difference and Electric Potential.
Chapter 26:Capacitance and Dielectrics. Capacitors A capacitor is made up of 2 conductors carrying charges of equal magnitude and opposite sign. The Capacitance.
Objectives: 1. Define and calculate the capacitance of a capacitor. 2. Describe the factors affecting the capacitance of the capacitor. 3. Calculate the.
Capacitance and Dielectrics AP Physics C. Applications of Electric Potential Is there any way we can use a set of plates with an electric field? YES!
1 Capacitance and Dielectrics Chapter 27 Physics chapter 27.
Capacitance Definition Parallel Plate Capacitors Cylindrical Capacitor
A sphere of radius A has a charge Q uniformly spread throughout its volume. Find the difference in the electric potential, in other words, the voltage.
Capacitors in series: Capacitors in parallel: Capacitors Consider two large metal plates which are parallel to each other and separated by a distance.
24 volts + - When fully charged which of these three capacitors holds the largest quantity of charge, Q? 2)B 3)C 4)all are the same Which of these three.
Ch 26 – Capacitance and Dielectrics The capacitor is the first major circuit component we’ll study…
Capacitors Consider two large metal plates which are parallel to each other and separated by a distance small compared with their width. Area A The field.
Chapter 26 Capacitance and Dielectrics. Concept Question 1.
Capacitance (II) Capacitors in circuits Electrostatic potential energy.
Chapter 24 Capacitance, Dielectrics, Electric Energy Storage
A capacitor is a device that stores electrical potential energy by building up a difference in charge on two pieces of metal.
Physics 2102 Lecture 7 Capacitors I Physics 2102 Jonathan Dowling.
Capacitance.
Experiment 1 :- Determining the capacitance of a capacitor / connecting capacitors in series and in parallel: Goal: 1- Learning how to determine the capacitance.
September 29, 2008 CAPACITORS How did you do? A. Great B. OK C. Poor D. Really bad E. I absolutely flunked!
Chapter 17: Electric Potential 1.  As in earlier chapters on mechanics we learned that energy is conserved; it is neither created nor destroyed but is.
Electric Potential. Electrostatic Potential Energy and Potential Difference The electrostatic force is conservative – potential energy can be defined.
Lecture 17 Problems & Solution(1). [1] What is the magnitude of the current flowing in the circuit shown in Fig. 2? [2] A copper wire has resistance 5.
Chapter 17 Electric Potential. Objectives: The students will be able to: Given the dimensions, distance between the plates, and the dielectric constant.
Monday, Sept. 26, 2005PHYS , Fall 2005 Dr. Jaehoon Yu 1 PHYS 1444 – Section 003 Lecture #8 Monday, Sept. 26, 2005 Dr. Jaehoon Yu Capacitors Determination.
Chapter 25 Capacitance-II In the last lecture: we calculated the capacitance C of a system of two isolated conductors. We also calculated the capacitance.
Physics 106 Lesson #16 Capacitors Dr. Andrew Tomasch 2405 Randall Lab
How many different ways can a test charge be forced to the right in the diagram? Welcome to a Great Physics Day!
Capacitance PHY 2049 Chapter 25 Chapter 25 Capacitance In this chapter we will cover the following topics: -Capacitance C of a system of two isolated.
Capacitor An element that stores charge when a voltage is applied
February 14, 2005Capacitors1 Welcome Back Exam returned Wed or Friday.  Problem 1 – We did it in class  Problem 2 - A Web Assign Problem  Problem 3.
Capacitance. Characteristics of a Capacitor No Dielectric Uniform Electric Field d Area Note: Net charge of the system.
Potential Difference and Capacitance Consider a rock dropped in a grav. field: Work is done by gravity To lift the object, Work is done to give the rock.
Chapter 25 Capacitance.
Electrical Energy and Capacitance Physics - Chapter 18.
Electrostatics #5 Capacitance. Capacitance I. Define capacitance and a capacitor: Capacitance is defined as the ability of an object to store charge.
Today’s agenda: Capacitance. You must be able to apply the equation C=Q/V. Capacitors: parallel plate, cylindrical, spherical. You must be able to calculate.
CAPACITORS February, 2008 Capacitors Part I A simple Capacitor  Remove the battery  Charge Remains on the plates.  The battery did WORK to charge.
A sphere of radius A has a charge Q uniformly spread throughout its volume. Find the difference in the electric potential, in other words, the voltage.
Capacitors The capacitor is an element that continuously stores charge (energy), for later use over a period of time! In its simplest form, a capacitor.
Halliday/Resnick/Walker Fundamentals of Physics
Physics 102: Lecture 4, Slide 1 Capacitors (& batteries) Physics 102: Lecture 04.
Capacitance (II) Capacitors in circuits Electrostatic potential energy.
Objectives: 1. Define and calculate the capacitance of a capacitor. 2. Describe the factors affecting the capacitance of the capacitor. 3. Calculate the.
Objectives: 1. Define and calculate the capacitance of a capacitor. 2. Describe the factors affecting the capacitance of the capacitor. 3. Calculate the.
Capacitor Device that can store electric charge Two conducting objects are placed near one another but not touching Power source charges up the plates,
Capacitance Chapter 26 (Continued) 1 30.
Chapter 25 Capacitance In this chapter we will cover the following topics: -Capacitance C of a system of two isolated conductors.
Chapter 25 Capacitance In this chapter we will cover the following topics: -Capacitance C of a system of two isolated conductors.
Inductance and Capacitance
Fun with Capacitors.
Consider two conductors carrying charges of equal magnitude but of opposite sign, Such a combination of two conductors is called a capacitor. The.
Capacitors.
CAPACITORS February 11, 2008.
Introduction to Capacitance
PHYS 221 Recitation Kevin Ralphs Week 3.
Physics 014 Capacitance.
More on capacitors Unit 8.2.
Capacitors Part I.
Chapter 25 Capacitance-II
Capacitance AP Physics 2.
CAPACITORS Part I February 12, 2007.
Capacitor An element that stores charge when a voltage is applied
Capacitor An element that stores charge when a voltage is applied
Capacitance PHY 2049 Chapter 25.
Capacitance PHY 2049 Chapter 25.
Presentation transcript:

February 10 1CAPACITORS

A. Great B. Good C. Not So Good D. Bad E. Don’t turn your back!

 Today ◦ Examination I ◦ Complete Capacitors  Friday  DC Circuits Play with batteries, wires and light bulbs Watch for WebAssign. Next Week – More of the same

Two pieces of metal close to one another but they don’t touch. Real World Charge has no place to go!

Single Piece of Metal. Not connected to anything electrons

q -q Charge is the same for every capacitor in a series “string”

q -q Wires are equipotentials … sort of. C 1 C 2

q -q C 1 C 2 V 1 V 2 VTVT

VTVT

One Single Conductor Model

C1 C2 Calculate the combined capacitance C1= C2= C1||c2= Measure=__

(C1+C2) series =

Determine the equivalent capacitance between A and B for the group of capacitors in the drawing. Let C 1 = 14 µF and C 2 = 5.0 µF.

 A capacitor which acquires a charge of 1 coulomb on each plate with the application of one volt is defined to have a capacitance of 1 FARAD  One Farad is one Coulomb/Volt

 The capacitance of a parallel plate capacitor depends only on the Area and separation between the plates.  C is dependent only on the geometry of the device!

DIELECTRIC

Some LOCAL ordering Larger Scale Ordering

- + Net effect REDUCES the field

APPLICATION OF GAUSS’ LAW

C 0 = Vacuum or air Value C = With dielectric in place C=  C 0

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2024 SlidePlayer.com. Inc. All rights reserved.