## Classical Electrodynamics |

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Page 104

An

some later instant of time. Hence, as far as the averaged quantities are

concerned, it is legitimate to talk of static fields and charges.” Furthermore, the

averaging ...

An

**average**over them at that instant will yield the same result as an**average**atsome later instant of time. Hence, as far as the averaged quantities are

concerned, it is legitimate to talk of static fields and charges.” Furthermore, the

averaging ...

Page 108

+ pe. where N, is the number of molecules of type i per unit volume, (e) is their

free) charge density. Usually the molecules are neutral, and the total charge

density ...

+ pe. where N, is the number of molecules of type i per unit volume, (e) is their

**average**charge, and (p,) is their**average**dipole moment. pes is the excess (orfree) charge density. Usually the molecules are neutral, and the total charge

density ...

Page 321

(10.43) 8tr Jr r* dr - The

the total current I and radius R without specifying the detailed radial behavior.

Thus 2m | R (p) = +, rp(r) dr (10.44) TR* Jo Integration by parts and use of (10.40)

...

(10.43) 8tr Jr r* dr - The

**average**pressure inside the cylinder can be related tothe total current I and radius R without specifying the detailed radial behavior.

Thus 2m | R (p) = +, rp(r) dr (10.44) TR* Jo Integration by parts and use of (10.40)

...

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### Contents

Introduction to Electrostatics | 1 |

Nš 3 | 3 |

Greens theorem | 14 |

Copyright | |

30 other sections not shown

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angle angular applied approximation assumed atomic average axis becomes boundary conditions calculate called Chapter charge classical collisions compared component conducting conductor Consequently consider constant coordinates cross section cylinder defined density depends 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 limit Lorentz loss magnetic magnetic field magnetic induction magnitude mass means momentum motion moving multipole normal observation obtain origin parallel particle physical plane plasma polarization position potential problem properties radiation radius region relation relative result satisfy scalar scattering shows side simple solution space sphere spherical surface transformation unit vanishes vector velocity volume wave written