Electromagnetic Radiation
Claimed by Carlos Fernandez to edit (Spring 2016)
Electromagnetic Radiation
The four Maxwell's Equations provide a complete description of possible spatial patterns of electric and magnetic field in space.
The Main Idea
If a charge is moved sinusoidally it will emit continuous radiation.
A Mathematical Model
The position of the particle is defined by a sine wave:
y = ymaxsin(wt)
Where w is the angular frequency.
Amplitude
The Amplitude of the sinusoidal Wave is the height of the peak in the wave measured from the zero line.
Period
The period of the wave is the time between crests.
T = 2pi/w-----(units of seconds)
Frequency
f = 1/T f = w/2pi----(Units Hertz)
Wavelength
The distance between crests in meters. Wavelength is equal to the speed of light times frequency.
ENERGY FLUX
Is defined by the following equation:
S = (1/u0)*(E x B) in W/m^2