Wednesday, August 1, 2007

what is electromagnetism and charge?

Electromagnetism and Charge:
  • Mass is one attribute of matter. It is associated with the gravitational force.
  • Charge is another attribute of matter. It is associated with the electromagnetic force.
  • The theory of electromagnetism was first proposed by James C. Maxwell
  • Light is an electromagnetic wave.
  • Matter can be electrically charged.
  • A stationary charge has an electric field.
  • A moving charge can produce a magnetic field.
  • Just as gravity accelerates masses, electric and magnetic fields can accelerate charges.

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