Electromagnetism Faraday & Maxwell. Maxwell James Clerk Faraday (1831- 1879) was an Scottish scientist. He was a gifted mathematician and one of the first.

Slides:

Advertisements

Similar presentations

PH0101 UNIT 2 LECTURE 2 Biot Savart law Ampere’s circuital law

Advertisements

Maxwell’s Equations and Electromagnetic Waves Setting the Stage - The Displacement Current Maxwell had a crucial “leap of insight”... Will there still.

Chapter 29 Faraday’s Law. Electromagnetic Induction In the middle part of the nineteenth century Michael Faraday formulated his law of induction. It had.

MAXWELL’S EQUATIONS 1. 2 Maxwell’s Equations in differential form.

Maxwell’s Equations The two Gauss’s laws are symmetrical, apart from the absence of the term for magnetic monopoles in Gauss’s law for magnetism Faraday’s.

AP Physics C Montwood High School R. Casao

29. Maxwell’s Equations. 2 Topics Laws of Electric & Magnetic Fields James Clerk Maxwell Maxwell’s Equations.

Dr. Alexandre Kolomenski

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? Gauss’s.

Magnetic Flux Conservation Stage manager: Prof. Peter von Brentano Operator: Dr. G. Pascovici.

Chapter 22: Electromagnetic Waves

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

Winter wk 9 – Mon.28.Feb.05 Energy Systems, EJZ. Maxwell Equations in vacuum Faraday: Electric fields circulate around changing B fields Ampere: Magnetic.

G L Pollack and D R Stump Electromagnetism Electromagnetic Induction Faraday’s law If a magnetic field changes in time there is an induced electric.

Maxwell Equation Equation 1: Gauss’s law for electric field Equation 2: Gauss’s law for magnetic field There is no magnetic monopole: north and south poles.

Waves can be represented by simple harmonic motion.

08/28/2013PHY Lecture 011 Light is electromagnetic radiation! = Electric Field = Magnetic Field Assume linear, isotropic, homogeneous media.

Electromagnetic Waves.  Concept and Nature of EM Waves  Frequency, Wavelength, Speed  Energy Transport  Doppler Effect  Polarization.

Electromagnetic Waves. Electromagnetic waves are simply oscillating electric and magnetic fields where the they move at right angles to each other and.

& Electromagnetic Waves.  equivalent to Coulomb’s law.

Maxwell’s Equations Maxwell Summarizes all of Physics using Fields.

Jaypee Institute of Information Technology University, Jaypee Institute of Information Technology University,Noida Department of Physics and materials.

Lecture 21-1 Resonance For given  peak, R, L, and C, the current amplitude I peak will be at the maximum when the impedance Z is at the minimum. Resonance.

Electric and Magnetic Constants

Chapter 34 Electromagnetic Waves. Currents produce B Change in E produces B Currents produce B Change in E produces B Change in B produces an E charges.

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

Electromagnetic waves are generated when an electric charge (q) begins to accelerate (that is, when its velocity begins to change). When an electric field.

Winter wk 8 – Thus.24.Feb.05 Review Ch.30 – Faraday and Lenz laws Ch.32: Maxwell Equations! Gauss: q  E Ampere: I  B Faraday: dB/dt  E (applications)

Electromagnetic Waves Chapter 35. Electromagnetic (EM) Waves Can travel through space Radio, Microwaves, IR, Light, UV, X-rays, Gamma Rays All on the.

1 Chapter 3 Electromagnetic Theory, Photons and Light September 5,8 Electromagnetic waves 3.1 Basic laws of electromagnetic theory Lights are electromagnetic.

James Clerk Maxwell. Maxwell’s Equations 1.Gauss’ Law for E-fields –Electric charges are the beginning (source) or end (drain) of field lines 2.Gauss’s.

Chapter 21 Electromagnetic Waves. General Physics Exam II Curve: +30.

Electromagnetism Lenz’s law and Maxwell’s equations By: Mahdi Dardashtian.

CH-32: Maxwell's Equations (4) Gauss' law for electricity: Gauss' law for magnetism: Relates net electric flux to net enclosed electric charge. Relates.

Maxwell’s equations the dawn of 20 th century physics James Clerk Maxwell ( ) Physics 2102 Gabriela González.

Magnetic domains. Electric and magnetic constants In the equations describing electric and magnetic fields and their propagation, three constants are.

Electromagnetic Waves. James Clerk Maxwell Scottish theoretical physicist Famous for the Maxwell- Boltzman Distribution and Maxwell’s Equations.

Chapter 22 Electromagnetic Waves 22-1Changing Electric Fields Produce Magnetic Fields; Maxwell Equations James Clerk Maxwell ( )… showed that.

1 30 Outline Maxwell’s Equations and the Displacement Current Electromagnetic Waves Polarization.

Maxwell’s Equations Faraday Induction (Serway)

Maxwell’s Equations and Electromagnetic Waves

Chapter 32 Maxwell’s Equations Electromagnetic Waves.

Electromagnetic Induction. Motion of a magnet in a coil or loop creates (induces) voltage If coil is connected to complete circuit, current flows Relative.

Physics 213 General Physics Lecture 14. Test 1 1. Click in!!

Waves from the Sun Electromagnetic Wave Electric field – The electric field E at a point is defined as the force per unit charge experienced by a small.

Maxwell’s Equations in Free Space IntegralDifferential.

1 Discussion about the mid-term 4. A high voltage generator is made of a metal sphere with a radius of 6 cm sits on an insulating post. A wire connects.

Unit 4 Day 11 – Gauss’s Law for Magnetism

Maxwell’s Equations A Student’s Guide To Maxwell’s Equations A Student’s Guide To Maxwell’s Equations by Daniel Fleisch (2008) Cambridge University Press.Daniel.

Maxwell’s Equations BY: HARIYANI MITUL ( )

Lecture 21-1 Maxwell’s Equations (so far) Gauss’s law Gauss’ law for magnetism Faraday’s lawAmpere’s law *

Introduction to Electromagnetic Theory

Physics 213 General Physics Lecture Last Meeting: Electric Generators, Alternating Current Today: Electromagnetic Waves, Maxwell’s Equations.

1 30 Outline Maxwell’s Equations and the Displacement Current Electromagnetic Waves Polarization.

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

Chapter 24 The Electromagnetic Wave. 0) Summary of electromagnetism to Maxwell (1860) Kelvin: lines-of-force to replace action-at-a-distance (Coulomb’s.

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?

Electromagnetic Waves

Electromagnetic Waves

Lecture 19 Maxwell equations E: electric field intensity

WHAT IS A WAVE? disturbance that transports energy through matter or space.

Chapter 23: Electromagnetic Waves

Maxwell’s equations.

Maxwell’s Equations and Electromagnetic Waves

Maxwell’s Equations (so far…)

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?

Maxwell’s Equations and Electromagnetic Waves

Electric Currents from Magnetism

Maxwell’s Equations (so far)

Presentation transcript:

Electromagnetism Faraday & Maxwell

Maxwell James Clerk Faraday ( ) was an Scottish scientist. He was a gifted mathematician and one of the first scientists to take seriously Faraday’s notion of electric and magnetic fields permeating the universe.

Maxwell’s Equations: 1 Gauss’s Law: Electric field lines begin on positive charges and end on negative charges. The electric flux (field lines leaving an enclosed surface) is proportional to the charge density in a particular volume.

Maxwell’s Equations: 2 There is no such thing as a magnetic monopole.

Maxwell’s Equations: 3 Faraday’s Law: The voltage accumulated around a closed circuit is proportional to the rate of change in magnetic flux.

Maxwell’s Equations: 4 Ampere’s Law: A magnetic field is produced by a changing electric current and by a changing electric field.

Implications A moving charge creates a changing electric field. A changing magnetic field leads to a changing electric field. The electric field is at right angles to the magnetic field. A changing electric field creates a changing magnetic field. The magnetic field is at right angles to the electric field.

Electromagnetic waves Oscillating charges set up transverse waves in the electric and magnetic fields. Waves carry energy in a direction perpendicular to both E and B. Matter is made of oscillating charges.

Calculate Calculate the speed of an electromagnetic wave. Recall values for permittivity  0 = 4  x T m / A and permeability  0 = 8.85 x C 2 / Nm 2

Light is an electromagnetic wave!

Science & Religion God said… and there was light.