Maxwell

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Maxwell

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8/5/08. Lecture 2 Part 2. 1. Maxwell's Equations of the Electromagnetic Field Theory ... Maxwell's 'Displacement Current' 8/5/08. Lecture 2 Part 2. 2. Theory of ... – PowerPoint PPT presentation

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Title: 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
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8
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9
Photosphere
Radiance Power per unit area per unit
wavelength
10
Blackbody Radiation
Radiance Power per unit area per unit
wavelength
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