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Page 57
... entropy of the disc is S = ago әт = So ( p , T ) + VE2 [ ε - 1 8π 1 де = The induction inside the disc is the same as the external field : D E. Hence , to calculate the heat capacity D , we must differentiate for constant E. The ...
... entropy of the disc is S = ago әт = So ( p , T ) + VE2 [ ε - 1 8π 1 де = The induction inside the disc is the same as the external field : D E. Hence , to calculate the heat capacity D , we must differentiate for constant E. The ...
Page 93
... entropy of the volume element dV increases by dQ / T . The rate of change of the total entropy of the body is therefore dø / dt = √ ( j · E / T ) dV . ( 20.7 ) Since the entropy must increase , this derivative must be positive ...
... entropy of the volume element dV increases by dQ / T . The rate of change of the total entropy of the body is therefore dø / dt = √ ( j · E / T ) dV . ( 20.7 ) Since the entropy must increase , this derivative must be positive ...
Page 111
... entropy ; the rate of change of the total entropy is ‡ d.S = dt dr - Eidv - fi - grad dV . T ( 26.2 ) Like the electric current density , the diffusion flux may be written as a linear combination of E and grad , or of j and grad . Using ...
... entropy ; the rate of change of the total entropy is ‡ d.S = dt dr - Eidv - fi - grad dV . T ( 26.2 ) Like the electric current density , the diffusion flux may be written as a linear combination of E and grad , or of j and grad . Using ...
Contents
Notation X | 1 |
2 The energy of the electrostatic field of conductors | 3 |
3 Methods of solving problems in electrostatics | 9 |
Copyright | |
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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 diffraction dipole direction discontinuity distance effect electric field electromagnetic electrons electrostatic ellipsoid equation div expression external field ferroelectric ferromagnetic field H fluid flux force formula free energy frequency function given gives grad H₂ Hence incident induction integral isotropic Laplace's equation layer linear macroscopic magnetic field magnetic moment magnetisation magnitude Maxwell's equations medium metal normal obtain optical particle perpendicular piezoelectric plane polarisation PROBLEM propagation properties pyroelectric quantities refraction relation respect result rotation scalar scattering SOLUTION sphere suffixes superconducting surface symmetry tangential temperature theory thermodynamic potential tion unit volume values variable velocity wave vector wire z-axis zero