Please be Seated. New from Lecture-Demonstration Art Exhibit: Perception and Illusion: The Physics of Light and Optics Union Gallery, 1 st Floor, Stamp.

Slides:

Advertisements

Similar presentations

Faradays Law of Induction A changing magnetic field induces an electric field. The induced electric field causes a current to flow in a conductor.

Advertisements

Lenzs Law. Minus Sign There is a minus sign in Faradays Law. There is a minus sign in Faradays Law. Relates flux change to polarity of emfRelates flux.

Electromagnetic induction, flux and flux linkage Makingelectricity (resourcefulphysics.org)

Electromagnetic Induction

Magnetism and Magnetic Levitation Trains Does the US have them ? How do they work ? What do they have to offer ? 1. Japan and Germany have demo versions.

Phy 213: General Physics III Chapter 30: Induction & Inductance Lecture Notes.

Magnetism Lenz’s Law 1 Examples Using Lenz’s Law.

Physics Announcements WebAssign – –Chapter 22 due next Wednesday Exam #2 corrections still not graded Exam #3 is on April 9.

Electromagnetism Physics 100 Chapt 15 Michael Faraday.

Basics in Magnetism Electromagnetism Force on a Current-Carrying Wire EM Induction Transformer Generators Electric Motors ELECTROMAGNETISM.

Electromagnetic Induction Chapter induced EMF and Induced Current If a coil of conducting material and a magnet are moving (relative to one another)

Chapter 29:Electromagnetic Induction and Faraday’s Law

Chapter 22 Electromagnetic Induction. 1) Induced emf and induced current Changing B-field induces current.

Physics II: Electricity & Magnetism Introduction.

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)

 Chapter 15 – Electric Forces and Fields  Chapter 16 – Electrical Energy and Capacitance  Chapter 17 – Current and Resistance  Chapter 18 – Direct.

THE TRANSFER OF STATIC ELECTRIC CHARGES 1. Charged Objects  The study of static electric charges is called ____________  An electroscope is an instrument.

Grade 9 Science – Unit 4 – Electricity #1 Atom Structure Electric Charges ChargingElectric Discharge More Charging

Charge Attraction Or Repulsion Charging by Transfer.

Electricity Physics Ms. Henry School House Rock: Title 49 (Chapter 1)

PHYSICS 112 Dr. Anatoli Frishman

Physics MechanicsThermal properties ElectromagnetismOpticsAtoms & particles Electrostatic Electric current Magnetism Geometrical optics Wave optics Condensed.

PHYSICS 112 Dr. Anatoli Frishman Web Page:

Board Work What are the directions of the forces on the opposite charges moving with velocity v through magnetic field B? B v +−

THE TRANSFER OF STATIC ELECTRIC CHARGES 1. Charged Objects  The study of static electric charges is called electrostatics.  An electroscope is an instrument.

Welcome to the 4 th Marking Period Unit V – Ch 32, Electrostatics – Ch 33, Electric Fields and Potential – Ch 34, Electric Current – Ch 35, Electric Circuits.

AP Physics Chapter 21 Electromagnetic Induction, Faraday’s Law, and AC Circuits An electric current produces a magnetic field and a magnetic field exerts.

List of Demos on Electric Field Lecture 2 Friday July 7 1. Electrostatics kit 2. Small Van de Graaff Generator, lightning rod, electroscope, electric wind.

Announcements  FINAL EXAM: PHYS (10 am class): Monday, May 10-11:50 am PHYS (11 am class): Wednesday, May 10-11:50 am  NO New.

Lecture 23—Faraday’s Law Electromagnetic Induction AND Review of Right Hand Rules Monday, March 30.

Electromagnetic Induction and Faraday’s Law

Chapter 17: Static Electricity:.

Faraday’s Law.

STATIC ELECTRICITY CHAPTER 11. Charged Objects  The study of static electric charges is called ELECTROSTATICS.  An electroscope is an instrument that.

Please be Seated. It’s Physics Physics is Phun November 2007.

Please be Seated. Summer Programs Summer Programs for Pre-College Students.

Announcements Generalized Ampere’s Law Tested I I Consider a parallel plate capacitor that is being charged Try Ampere’s modified Law on two nearly identical.

Electrostatic Charge Transfer. How do objects get charged? Electrons can move –Conductors electrons are “free” and can move throughout the material 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.

Please come to the front of the lecture hall to see the demonstrations.

Lecture series for Conceptual Physics, 8 th Ed.. Electrical forces p373 Electrical forces are a gazillion times stronger than gravity. They should crush.

Electromagnetic Induction and Faraday’s Law.. Induced Current.

Magnetically Levitated Trains

Faraday’s Law of Induction Magnetic flux  = A B cos   B A A changing magnetic flux generates an induced voltage (emf = electromotive force) V = [emf]

Daily phenomena Basic Definitions 1 Electrostatics

Electromagnetism.  A moving charge creates a magnetic field  Electric current (I) is moving electrons, so a current-carrying wire creates a magnetic.

Electromagnetic induction And you. When you move a magnet in a solenoid, what happens? Solenoid/magnet demo here Look closely, and describe what you see.

Warm-Up Pick up two sheets and packet in the back. Work on Mini Lab at your desk.

Unit 12 Electrostatics. Electrostatics  Electricity at Rest  It involves 1. Electric Charges 2. The Forces Between Them 2. The Forces Between Them 3.

 What is the term for electricity at rest?  For a neutral atom, the amount of electrons equals…

Induction and Inductance

Please be Seated.

Match the word and the description

P2 Topic 1: Static and current electricity

Electromagnetism.

Electric Charge What produces a net electric charge? An excess or shortage of electrons produces a net electric charge.

Dr. Anatoli Frishman PHYSICS 112 Dr. Anatoli Frishman Web Page:

Conduction and Induction

Electromagnetic Induction

MAGNETISM ELECTROMAGNETISM.

The Transfer of Static Electric Charges 1

The Nature of Electromagnetic Waves

Nature of Electromagnetic Waves

Holt Physics Ch. 1 The Science of Physics Ch. 2 Motion in One Dimension Ch. 3 Two-Dimensional Motion and Vectors Ch. 4 Forces and the Laws of Motion.

ELECTRICAL CHARGE Ch. 32.

Introduction to Electromagnetic Radiation and Optics

Electric Charge and Force

ELECTROSTATICS.

Chapter 30 Induction and Inductance

Presentation transcript:

Please be Seated

New from Lecture-Demonstration Art Exhibit: Perception and Illusion: The Physics of Light and Optics Union Gallery, 1 st Floor, Stamp Student Union Continuing through February 4, 2005 Gallery hours: Monday-Saturday, 10:00 AM – 8:00 PM Guided tours by Prof. Berg: each Wednesday at12:30 PM

New from Lecture-Demonstration Now on a two-DVD set: The classic four-hour video collection: Demonstrations in Acoustics for only $20. Discount for direct cash Sales. Inquire in front. Dr. Richard E. Berg, demonstrating over 70 experiments, in 29 titled segments, covering vibrations, waves and sound.

New Physics is Phun list Go to the Physics is Phun web site and click on “mailing list” link near top of page

Electricity and Magnetism Physics is Phun January 2005

Topics: Electrostatics Magnetostatics Laws of Electromagnetism

Electrostatics

Pity the poor neutron; he thought he was a proton but he wasn’t positive.

Siphon Quantum mechanical tunneling “Triboelectricity”

Charging by Induction

Polarization in the Atom Electric forces on polar molecule

Van de Graaff electrostatic generator: simulates lightning from cloud to ground

Lightning (1)

Lightning (2)

Lightning (3)

Lightning (4)

Lightning (5)

Lightning (6)

Lightning Rod Simulator Lightning striking the Empire State Building

Magnetostatics

Lodestone

Magnet and Magnetic Field

Broken Magnet

Relations between electricity and magnetism

Ampere’s Law: Electric currents create magnetic fields.

Lorentz Force: Charges moving in a magnetic field experience an electromagnetic force.

Faraday’s Law of Induction: A changing magnetic field creates an electric field.

Lenz’s Law: Induced electric currents act so as to oppose the motion that caused them.

Magnets dropped through tube

Magnetic Levitation

Train Levitation Magnetic Levitation Trains Photographs compliments of: High Speed Rail (HSR), by Oliver Keating Yamanashi test line Maglev site in Japan

Maglev Train “Tracks” Train moving on Guideway at 500 mph The Yamanashi Guideway for the MLX01

Electromagnetic Can Crusher 1. Slow motion view 2. Diagram showing explanation a. current from capacitor creates magnetic field b. increasing magnetic field induces electric field c. electric field moves electrons around can d. electrons feel inward and separation forces e. can cut in two and pushed apart Slow motion of can crusher at Weslyan University Compliments of Vacek Miglus

Cyclotron Dee discharge

Cyclotron ion source

We are on the web at Animated Gifs compliments of bellsnwhistles.com The End See you in March!