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Magnetic Fields

Topic Review on "Title":

Magnetic Domain:
Microscopic areas of atoms where the magnetic fields are aligned.

A naturally magnetic class of materials where the magnetic domains are ordered and do not cancel out.

Magnetic Field:
Lines showing the shape and exent of a magnetic field around a permanent magnet or a moving charged object.  To signify a field coming directly out of the plane of a page, dots are used.  To signify a field going directly into the page, an X is used.

Right Hand Rule. RHR:

  1. The fingers extend or curl in the direction of the magnetic field.
  2. The outstretched thumb points in the direction of conventional current, or the direction of a positively charged moving particle.
  3. A line perpendicular to the palm indicates the direction of the magnetic force.

Mass Spectrometer:
A device that magnetically separates charged ions according to their mass.  A magnetic field is used to accomplish this separation.

Rapid Study Kit for "Title":
Flash Movie Flash Game Flash Card
Core Concept Tutorial Problem Solving Drill Review Cheat Sheet

"Title" Tutorial Summary :

Magnetism is a naturally occurring phenomena.  In most materials, the magnetic domains are randomly aligned.  However, in some cases, they are all aligned to produce a magnet.  This creates a magnetic field that extends around the object, moving from North to South.  A magnetic field can also be created from a moving charge, or current.  The right hand rule is used to visualize this field.  When a charge moves through an existing magnetic field, a magnetic force is exerted on it.  There are many examples in science and technology that utilize magnetism.

Tutorial Features:

Specific Tutorial Features:

  • Diagrams showing various magnetic fields.
  • Illustrations showing all aspects of the right hand rule.

Series Features:

  • Concept map showing inter-connections of new concepts in this tutorial and those previously introduced.
  • Definition slides introduce terms as they are needed.
  • Visual representation of concepts
  • Animated examples—worked out step by step
  • A concise summary is given at the conclusion of the tutorial.

"Title" Topic List:

Magnetism in nature

  • Magnetic domains
  • Ferromagnetism
  • Magnetic field diagrams

Magnetism, force and moving charge

  • Right hand rule
  • Magnetic field notation
  • Magnetic force on a current carrying wire
  • Magnetic force on a moving charged particle

Magnetism in technology

  • Mass spectrometer
  • Speakers, MRIs, and magnetic media

See all 24 lessons in calculus physics, including concept tutorials, problem drills and cheat sheets:
Teach Yourself Calculus Physics Visually in 24 Hours