Comparison of Magnetostatics and Electrostatics

Slides:

Advertisements

Similar presentations

Straight line currents

Advertisements

Two questions: (1) How to find the force, F on the electric charge, Q excreted by the field E and/or B? (2) How fields E and/or B can be created?

MAGNETOSTATICS ONLINE TEST Q.NO.ANSWER Q.NO.ANSWER Q.NO.ANSWER

Prof. D. Wilton ECE Dept. Notes 22 ECE 2317 Applied Electricity and Magnetism Notes prepared by the EM group, University of Houston. (used by Dr. Jackson,

Magnetostatics Magnetostatics is the branch of electromagnetics dealing with the effects of electric charges in steady motion (i.e, steady current or DC).

8/5/08Lecture 2 Part 21 Maxwell’s Equations of the Electromagnetic Field Theory Gauss’s Law – charge makes an electric field The magnetic field is solenoidal.

Lecture 21 Today Magnetic forces and Torques The Biot-Savart Law Magnetic force between two parallel conductors Maxwell’s magnetic potential.

Lecture 19 Exam II Average: Lecture 19 Today Brief review of Electrostatics (I) 1.Maxwell equations 2.Charge and current distributions.

S. Mandayam/ EEMAG-1/ECE Dept./Rowan University Engineering Electromagnetics Fall 2004 Shreekanth Mandayam ECE Department Rowan University.

EEE340Lecture : Magnetic Dipole A circular current loop of radius b, carrying current I makes a magnetic dipole. For R>>b, the magnetic vector potential.

The Electric and Magnetic fields Maxwell’s equations in free space References: Feynman, Lectures on Physics II Davis & Snyder, Vector Analysis.

EEE340Lecture : Power Dissipation and Joule’s Law Circuits Power Fields Power density (5.53)

Physics for Scientists and Engineers II, Summer Semester Lecture 13: June 19 th 2009 Physics for Scientists and Engineers II.

Lecture 28 Last lecture: The electromagnetic generator Moving conductor in a time varying magnetic field Displacement current.

EM & Vector calculus #3 Physical Systems, Tuesday 30 Jan 2007, EJZ Vector Calculus 1.3: Integral Calculus Line, surface, volume integrals Fundamental theorems.

Ampere’s Law AP Physics C Mrs. Coyle Andre Ampere.

Lecture 9 Vector Magnetic Potential Biot Savart Law

Lecture 4: Boundary Value Problems

Chapter 7 Electrodynamics

Copyright © 2009 Pearson Education, Inc. Chapter 34 Electromagnetic Waves.

Dr. Hugh Blanton ENTC Magnetostatics Dr. Blanton - ENTC Magnetostatics 3 Magnetostatics Magnetism Chinese—100 BC Arabs—1200 AD Magnetite—Fe.

2 Maxwell’s Equations Copyright © 2007 Oxford University Press Elements of Electromagnetics Fourth Edition Sadiku3 Figure 9.1 Examples of time-varying.

Chapter 5 Overview. Electric vs Magnetic Comparison.

Gauss’ Law for magnetic fields There are no magnetic “charges”.

PHYS 241 Recitation Kevin Ralphs Week 8. Overview HW Questions Magnetostatics Biot-Savart Law Gauss’s Law for Magnetism Ampere’s Law.

Operators. 2 The Curl Operator This operator acts on a vector field to produce another vector field. Let be a vector field. Then the expression for the.

Coulomb´s Law & Gauss´s Law

EEL 3472 Magnetostatics 1. If charges are moving with constant velocity, a static magnetic (or magnetostatic) field is produced. Thus, magnetostatic fields.

Chapter 5 Magnetostatics 5.1 The Lorentz Force Law 5.2 The Biot-Savart Law 5.3 The Divergence and Curl of 5.4 Magnetic Vector Potential.

5.3 Divergence and Curl of B Ampere’s law differential form.

Moving Electrical Charge Magnetic Field Moving Electrical Charge The Hall Effect The net torque on the loop is not zero. Hall coefficient magnetic dipole.

Finish EM Ch. 5: Magnetostatics Methods of Math

Review for Test #3  Responsible for: - Chapters 23, 24, 25, and 27 (except 24.5, 25.7, 25.8, and 27.5) - Notes from class - Problems worked in class -

Finish EM Ch.5: Magnetostatics Methods of Math. Physics, Thus. 10 March 2011, E.J. Zita Lorentz Force Ampere’s Law Maxwell’s equations (d/dt=0) Preview:

1 ENE 325 Electromagnetic Fields and Waves Lecture 9 Magnetic Boundary Conditions, Inductance and Mutual Inductance.

Gauss’s Law for the magnetic field is a statement of the fact that electric charge has no analog in magnetism. That is, there is no such thing as a magnetic.

Which one of the following laws involves an imaginary loop? a) Ampere’s Law b) Coulomb’s Law c) The Biot-Savart Law d) Gauss’s Law for the Electric Field.

Unit 4 Day 11 – Gauss’s Law for Magnetism

Patterns of Fields: Gauss’ Law, Ampere’s Law M&I Chapter 22.

Electromagnetism Faraday & Maxwell. Maxwell James Clerk Faraday ( ) was an Scottish scientist. He was a gifted mathematician and one of the first.

EEE 431 Computational Methods in Electrodynamics Lecture 2 By Rasime Uyguroglu.

Maxwell’s Equations. Four equations, known as Maxwell’s equations, are regarded as the basis of all electrical and magnetic phenomena. These equations.

ENE 325 Electromagnetic Fields and Waves

Lecture 20 Dielectric-Conductor boundary Lecture 20 Conductor-Conductor boundary.

Energy in magnetic fields

Maxwell’s Equations in Terms of Potentials

Fundamentals of Applied Electromagnetics

Magnets and Electromagnetic Induction

Electromagnetic Theory

Christopher Crawford PHY

Physics 121 Lecture Summaries

ENE 325 Electromagnetic Fields and Waves

§5.3: Magnetic Multipole Expansion

*Your text calls this a “toroidal solenoid.”

Chapter 5 Magnetostatics

Lecture 19 Maxwell equations E: electric field intensity

§5.2: Formulations of Magnetostatics

Christopher Crawford PHY

Biot and savart law A small presentation.

Physics 16/21 Electricity & magnetism

Electrostatic Boundary Value Problems Ref: Elements of Electromagnetics by Matthew N. O. Sadiku.

PHY 712 Electrodynamics 9-9:50 AM MWF Olin 105 Plan for Lecture 12:

Supplementary Notes for Physics 2 Discussion

Charging by Magnetism Since you can create a magnetic field by running electricity through a wire, can you create electricity using a magnetic field?

PHY 712 Electrodynamics 9-9:50 AM MWF Olin 103 Plan for Lecture 11:

Electrostatics – Charges on Conductors

Sources of Magnetic Fields

PHY 712 Electrodynamics 9-9:50 AM MWF Olin 105 Plan for Lecture 11:

Example: calculate the magnetic field at point P due to a thin straight wire of length L carrying a current I. (P is on the perpendicular bisector of the.

Presentation transcript:

Comparison of Magnetostatics and Electrostatics Gauss’s law no magnetic monopoles! Ampere’s law Boundary conditions: far from all charges far from all currents Magnetic effects are attributable to electric charges in motion

Magnetic Vector Potential The vector potential is not uniquely defined: Both vector potentials produce the same magnetic field One can require that source field

Poisson’s equation for line current for surface current

Example: vector potential of a thin long straight wire For Example: find the vector potential of a uniform magnetic field check using the Einstein notation