week2 (dragged) 50

week2 (dragged) 50 - ones are zero. E.g., dipole is very...

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Multipoles ! Electric charge = Electric monopole, E ~ 1/r^2 ! Dipole: E ~ 1/r^3 ! ? 41 Quadrupole: E ~ 1/r^4 A multipole is important if lower
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Unformatted text preview: ones are zero. E.g., dipole is very important for B-field, since no magnetic charge Thursday, September 2, 2010...
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