## Classical ElectrodynamicsProblems after each chapter |

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Page 211

This shows that , apart from an overall phase factor , the pulse travels along

undistorted in shape with a

an energy density is associated with the magnitude of the wave ( or its absolute ...

This shows that , apart from an overall phase factor , the pulse travels along

undistorted in shape with a

**velocity**, called the group**velocity**: vo do dk ( 7.32 ) Ifan energy density is associated with the magnitude of the wave ( or its absolute ...

Page 331

where we have introduced a vectorial Alfvén

equation ( 10.69 ) for v , is somewhat involved , but it allows simple solutions for

waves propagating parallel or perpendicular to the magnetic field direction .

where we have introduced a vectorial Alfvén

**velocity**: B. ( 10.70 ) 4πρ The waveequation ( 10.69 ) for v , is somewhat involved , but it allows simple solutions for

waves propagating parallel or perpendicular to the magnetic field direction .

Page 340

For wave numbers k < kp , the phase and group velocities of the longitudinal

plasma oscillations are : Up 0 k ( 10.107 ) 3 ( u ) Vg Dp From the definition of kp

we see that for such wave numbers the phase

the ...

For wave numbers k < kp , the phase and group velocities of the longitudinal

plasma oscillations are : Up 0 k ( 10.107 ) 3 ( u ) Vg Dp From the definition of kp

we see that for such wave numbers the phase

**velocity**is much larger than , andthe ...

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### Contents

Introduction to Electrostatics | 1 |

References and suggested reading | 23 |

Multipoles Electrostatics of Macroscopic Media | 98 |

Copyright | |

6 other sections not shown

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### Common terms and phrases

acceleration angle angular applied approximation assumed atomic average axis becomes boundary conditions calculate called Chapter charge charged particle classical collisions compared component conducting Consequently consider constant coordinates cross section cylinder defined density dependence derivative determine dielectric dimensions dipole direction discussed distance distribution effects electric field electromagnetic electron electrostatic energy equal equation example expansion expression factor force frame frequency function given gives incident inside integral involved light limit Lorentz loss magnetic magnetic field magnetic induction magnitude mass means modes momentum motion moving multipole normal observation obtain origin parallel particle physical plane plasma polarization position potential problem properties radiation radius region relation relative relativistic result satisfy scalar scattering shows side solution space sphere spherical surface transformation unit vanishes vector velocity volume wave written