Maxwell

1
Maxwells Equations of the Electromagnetic Field
Theory
Gausss Law charge makes an electric field
The magnetic field is solenoidal (no monopole
sources).
Faradays Law of electromagnetic induction -- E
curls around a changing B.
Ampères Law current makes a magnetic field
Maxwells Displacement Current
2
Theory of Electromagnetic Waves
3
Theory of Electromagnetic Waves
4
Theory of Electromagnetic Waves
5
Applications
Photon Energy
Frequency Wavelength
Each part of the electromagnetic spectrum has
important applications!
6
With our modern technologies, we use all parts of
the electromagnetic spectrum. But how do we
create the different electromagnetic waves?
7
(No Transcript)
8
(No Transcript)
9
Photosphere
Radiance Power per unit area per unit
wavelength
10
Blackbody Radiation
Radiance Power per unit area per unit
wavelength