'Moving charge' diaporamas de présentation

Ch. 21 - Magnetic Forces and Fields

Ch. 21 - Magnetic Forces and Fields. 3 D- visualization of vectors and current. 21.1 Magnetic Fields. The needle of a compass is permanent magnet that has a north magnetic pole (N) at one end and a south magnetic pole (S) at the other. 21.1 Magnetic Fields. The behavior of magnetic

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Physics 7C, Lecture 6

Physics 7C, Lecture 6. Magnetic Forces, Induced Currents, Induced EMFs, & Induction. Winter Quarter -- 2007. Professor Robin Erbacher 343 Phy/Geo erbacher@physics.ucdavis.edu. Announcements. Course syllabus (policy, philosophy) on the web: http://physics7.ucdavis.edu

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Magnetism

Magnetism. A Strangely Attractive Topic. History #1.

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Magnetism

Magnetism. A Strangely Attractive Topic. History #1.

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Magnetism

Magnetism. It is a Strangely Attractive Topic. History.

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Chapter 33. The Magnetic Field

Chapter 33. The Magnetic Field. Digital information is stored on a hard disk as microscopic patches of magnetism. Just what is magnetism? How are magnetic fields created? What are their properties? These are the questions we will address.

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Physics 7C SS1 Lecture 8: Electricity & Magnetism

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Magnetic Poles

Introduction to Physical Science Monday, Wednesday, Thursday Tom Burbine tomburbine@astro.umass.edu. Magnetic Poles. Like poles repel Opposite poles attract North pole South pole. Magnetic Force.

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Chapter 28

Chapter 28. Sources of Magnetic Field. Goals for Chapter 28. To determine the magnetic field produced by a moving charge To study the magnetic field of an element of a current-carrying conductor To calculate the magnetic field of a long, straight, current-carrying conductor

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Magnetic field and forces

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Announcements

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Current and resistance

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Sources of the Magnetic Field...

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Magnetic Fields

Magnetic Fields. Ch 20 is about Magnetism, magnetic fields, and interactions between moving charges and magnetic fields. Magnetic materials. Magnetic materials: what are they? How do you make a magnet? What is a compass and how does it align with a magnetic field?

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Current

Current. A charge in an electric field is subject to a force. Acceleration Positive charges move with the field. Negative charges move against the field. -. +. Moving Charge. E. Moving water in a pipe forms a current. Steady flow at constant velocity

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Magnetism

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Current in a magnetic field

Current in a magnetic field. Force on a Moving Charge When a charged particle travels through a magnetic field, it experiences a force unlike any other that we're familiar with in everyday life. We call this force Lorentz force .

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Magnetic Force on a Moving Charge

Magnetic Force on a Moving Charge. Magnetic Force on a Current Carrying Wire. Point the fingers of your right hand in the direction of the vector A. Curl your fingers toward the direction of the vector B. The cross-product vector C is given by the direction of your thumb.

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