## Classical ElectrodynamicsProblems after each chapter |

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Page 296

The power radiated per unit solid angle in the scalar Kirchhoff

The power radiated per unit solid angle in the scalar Kirchhoff

**approximation**is 2 Cosa + cos 0 dP ( ka ) - Pi COS O. dΩ 477 2J ( kaş ) kaξ ( 9.112 ) 2 cos a where P , is given by ( 9.104 ) . If we compare the vector Kirchhoff result ...Page 297

Then both scalar and vector

Then both scalar and vector

**approximations**reduce to the common expression , dp ( ka ) | J ( ka sin 0 ) 2 ( 9.113 ) d12 ka sin 0 The vector and ... The solid ( dotted ) curve gives the vector ( scalar )**approximation**in each case .Page 307

( 6 ) Compare your result in part ( a ) with the standard scalar Kirchhoff

( 6 ) Compare your result in part ( a ) with the standard scalar Kirchhoff

**approximation**and with the result in Section 9.8 for the polarization vector in the plane of incidence . 9.8 A rectangular opening with sides of length a and b ...### What people are saying - Write a review

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### Contents

Introduction to Electrostatics | 1 |

References and suggested reading | 23 |

Multipoles Electrostatics of Macroscopic Media | 98 |

Copyright | |

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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