'Magnetic material' diaporamas de présentation

Chapter 24: Magnetic Fields

PHYSICS Principles and Problems. Chapter 24: Magnetic Fields. Magnetic Field. CHAPTER 24. BIG IDEA. Magnets and moving electric charges are surrounded by magnetic fields that exert forces on magnetic materials and on moving charges. Table Of Contents. CHAPTER 24.

4.33k views • 200 slides

FOWLER CHAPTER 11 LECTURE 11 INDUCTANCE

FOWLER CHAPTER 11 LECTURE 11 INDUCTANCE. INDUCTANCE, CHAPTER 11 OPPOSES CHANGE OF CURRENT IN A CIRCUIT. DEVICES THAT USE INDUCTANCE (L) ARE CALLED INDUCTORS. A.K.A. AS CHOKES, REACTORS, COILS. INDUCTANCE IS THE RESULT OF A VOLTAGE INDUCTED IN A CONDUCTOR FROM A MAGNETIC FIELD.

848 views • 62 slides

Disk Drives

Disk Drives. Hard drive. In our original view of a computer as being comprised of ALU, Control, Memory, Input and Output, the hard drive is a device connected either as input or output. But the hard drive is also sometimes viewed as a logical extension of memory .

741 views • 52 slides

Magnetic Forces, Materials and Devices

686 views • 40 slides

Magnetism

Magnetism. Can you read through last lessons slide show?. Magnetism. ALL magnets have two poles. NORTH seeking pole. SOUTH seeking pole. Breaking a magnet produces two magnets!. N. S. N. S. N. S. N. S. Opposites attract!. Opposite poles attract and like poles repel.

560 views • 40 slides

COMPUTER & INDUSTRY LANGUAGE

623 views • 38 slides

Lecture # 11

Lecture # 11. Magnetism and Inductance. Magnetism. Magnetism is a phenomenon which includes forces exerted by magnets on other magnets It has its origin in electric currents and the fundamental magnetic moments of elementary particles. Magnetic Fields.

447 views • 33 slides

493 views • 33 slides

High Resolution Magnetic Imaging

High Resolution Magnetic Imaging. Lisa Qian SASS talk: 3/4/09. Motivation: hard drive technology. Motivation: Nanomagnets. Nanomaterials for Cancer Therapy Challa S. S. R. Kumar. Magnetic Logic Devices Wolfgang Porod, et. al. magnet. Tumor. 3-terminal majority logic gate. artery.

488 views • 29 slides

Institute of Instrumentation and Control Engineering fsid.cvut.cz/prt

495 views • 28 slides

Magnetism

Magnetism. What is an Amp? How many electrons per second in 5A? If this current is flowing through a 5 Ohm resistor, How much power? What are the units? How much energy in one hour?. History of Magnets.

386 views • 27 slides

Lecture #39: Magnetic memory storage

Lecture #39: Magnetic memory storage. Last lecture: Dynamic Ram E 2 memory This lecture: Future memory technologies Magnetic memory devices Hard drives, tape drives, Optical disks. Future memory technologies.

708 views • 26 slides

Aldo Canova (1), Fabio Degasperi (2), Francesco Ficili (4), Michele Forzan (3), Bruno Vusini (1)

Experimental and numerical characterisation of ferromagnetic ropes and non-destructive testing devices. Aldo Canova (1), Fabio Degasperi (2), Francesco Ficili (4), Michele Forzan (3), Bruno Vusini (1) (1) Dipartimento di Ingegneria Elettrica - Politecnico di Torino (Italy)

332 views • 16 slides

Magnetism

Magnetism. History of Magnets. (~800 BC) Ancient Chinese and Greeks discovered that certain stones would attract and magnetize iron. Small slivers of the stone were found to align themselves with the North Pole. Chinese were the first to use magnets for navigation.

366 views • 15 slides

275 views • 13 slides

Ferrofluids

Ferrofluids. Ferrofluids: Magnetic Liquids. Liquid That Responds to a Magnetic Field = Colloidal Suspension of Superparamagnetic Magnetic Material. How Does A Magnetic Liquid Work?. 2FeCl 3 + FeCl 2 + 8NH 3 + 4H 2 O ? Fe 3 O 4 + 8NH 4 Cl . Tetramethylammonium Cation

341 views • 10 slides

MAGNETIC REFRIGERATION

MAGNETIC REFRIGERATION. Rodrigo Gonzalez Abby Dutke ME304. WHAT IS IT?. A way to cool things using a magnetic material and a magnetic field Has been going on for years to cool small volumes to near 0 K temperatures Runs on MCE laws (magnetocaloric effect). MCE.

511 views • 7 slides

M agnets

M agnets. Repel or attract magnetic material. Rest in North-South direction when freely suspended. Repel when like poles are placed near each other. Attract when unlike poles are placed near each other. There are North and South poles. Iron or Steel.

142 views • 1 slides

sign_danger_lg

sign_danger_lg. Pacemaker & Metallic Implant Hazard Strong magnetic and radio- frequency fields are present that could cause serious injury or death to persons with implanted or attached medical devices, such as pacemakers and prosthetic parts.

81 views • 1 slides

Ultrafast and Distinct Spin Dynamics in Magnetic Alloys and Heterostructures

Ultrafast and Distinct Spin Dynamics in Magnetic Alloys and Heterostructures I. Radu 1 , T. A. Ostler 2* et al. 1 Helmholtz Zentrum , Berlin, Germany 2 The University of York, York, UK. 1. Introduction. 4. Incorporating Laser Heating.

259 views • 1 slides