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Unformatted text preview: of dipole moment Full Dipole moment: Def Lecture Notes Page 2 7.5.2 Electric & Magnetic Field Components 7.5.2.1 Magnetic field: define Aside: in spherical coordinates constant 7.5.2.2 Electric field Outside source area: Observation: transverse (orthogonal to ), but is not transverse! 7.5.3 Near field and still assume r much larger than source dimensions so dipole approximation valid! Amplitude of smaller than that of Observations: 1) Lecture Notes Page 3 Amplitude of smaller than that of dominates Observations: 1) 2) is basically static dipole field in this approximation (compare Griffith Eqn. 3.104) 7.5.4 Far field (Radiation Zone) Observations: 1) and transverse (orthogonal to ) 2) Comparable amplitudes for and . Lecture Notes Page 4...
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This note was uploaded on 07/28/2009 for the course PHYS 441B taught by Professor Norbertlutkenhaus during the Winter '09 term at Waterloo.
 Winter '09
 NorbertLutkenhaus

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