## Electrodynamics of Continuous Media |

### From inside the book

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Page 49

In particular, we can obtain the field by

respect to the components of the vector D: E = 4:(60/0D)s, - 47(0F|&D)7,. (10.7)

The free energy is more convenient in this respect, since it is to be

at ...

In particular, we can obtain the field by

**differentiating**these potentials withrespect to the components of the vector D: E = 4:(60/0D)s, - 47(0F|&D)7,. (10.7)

The free energy is more convenient in this respect, since it is to be

**differentiated**at ...

Page 134

It is most convenient to

energy is represented by 3, and so the generalised force Fa in the direction of a

generalised co-ordinate q is F. = -(6%|64)., T. The suffixes show that the

It is most convenient to

**differentiate**at constant current. In this case the freeenergy is represented by 3, and so the generalised force Fa in the direction of a

generalised co-ordinate q is F. = -(6%|64)., T. The suffixes show that the

**differentiation**...Page 174

: p = po(V, T)—$2/8t, (43.2) where po (V, T) is the pressure (for given V and T) in

the absence of the field. The equation (43.2) gives the relation between p, V and

...

**Differentiating**(43.1) with respect to the volume, we find the pressure on the body: p = po(V, T)—$2/8t, (43.2) where po (V, T) is the pressure (for given V and T) in

the absence of the field. The equation (43.2) gives the relation between p, V and

...

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### Contents

Methods of solving problems in electrostatics | 9 |

A conducting ellipsoid | 20 |

The forces on a conductor | 31 |

Copyright | |

54 other sections not shown

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### Common terms and phrases

angle anisotropy atoms averaging axes axis body boundary condition calculated charge circuit co-ordinates coefficient components conducting conductor constant corresponding cross-section crystal Curie point curl H current density cylinder denote depends derivative determined dielectric permeability difference differentiating diffraction dipole direction discontinuity distance effect electric field electromagnetic electrons electrostatic ellipsoid entropy equation div expression external field ferroelectric ferromagnetic fluid flux force formula free energy frequency function given gives grad Hence induction integral isotropic Laplace's equation layer Let us consider linear macroscopic magnetic field magnetic moment magnetisation magnitude Maxwell's equations medium metal normal obtain optical particle perpendicular phase piezoelectric plane polarisation PROBLEM propagation properties pyroelectric quantities radius refraction relation respect result rotation scalar scattering self-inductance ſº solution sphere suffixes superconducting surface symmetry tangential temperature theory thermodynamic potential tion uniform unit volume values variable velocity wave vector wire z-axis zero