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Energy Carried by Electromagnetic Waves definitions

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  • Electromagnetic Waves
    Waves that carry both electric and magnetic energy, characterized by oscillating electric and magnetic fields.
  • Energy Density
    The energy per unit volume carried by an electromagnetic wave, combining electric and magnetic energy.
  • Electric Energy
    Part of the energy density in electromagnetic waves, proportional to the square of the electric field strength.
  • Magnetic Energy
    Part of the energy density in electromagnetic waves, proportional to the square of the magnetic field strength.
  • Permittivity
    A measure of how an electric field affects and is affected by a medium, denoted as ε₀ in free space.
  • Permeability
    A measure of the ability of a material to support the formation of a magnetic field within itself.
  • Pointing Flux
    The power per unit area carried by an electromagnetic wave, oscillating with the wave's electric field.
  • Intensity
    The average power per unit area carried by a wave, calculated as the average of the pointing flux.
  • Speed of Light
    The constant speed at which light travels in a vacuum, approximately 3 x 10⁸ meters per second.
  • Amplitude
    The maximum value of the electric field in an oscillating electromagnetic wave.
  • Sinusoidal Waves
    Waves that oscillate in a sinusoidal pattern, common in electromagnetic wave descriptions.
  • Laser
    A device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation.
  • Cylindrical Beam
    A beam of light emitted in a cylindrical shape, often used in laser applications.
  • Watts
    The unit of power in the International System of Units, equivalent to one joule per second.
  • Newtons per Coulomb
    The unit of electric field strength, indicating the force per unit charge.