Principles of Electricity and Electromagnetism |
From inside the book
Results 1-3 of 72
Page 69
... volume integral may be written U = } √D . Ꭰ E dv ( 2.33 ) by the aid of Eq . ( 1.13 ) . Thus the energy per unit volume in terms of the field and displacement is given by D E. If the medium is linear and isotropic , Eq . ( 2.33 ) ...
... volume integral may be written U = } √D . Ꭰ E dv ( 2.33 ) by the aid of Eq . ( 1.13 ) . Thus the energy per unit volume in terms of the field and displacement is given by D E. If the medium is linear and isotropic , Eq . ( 2.33 ) ...
Page 190
... volume occupied by a unit charge of electrons in the vapor state . Equation ( 6.4 ) then becomes -E = pV TV- - dp dT ( 6.13 ) If n is the number of electrons per unit volume above the surface and e is the charge per electron V , the volume ...
... volume occupied by a unit charge of electrons in the vapor state . Equation ( 6.4 ) then becomes -E = pV TV- - dp dT ( 6.13 ) If n is the number of electrons per unit volume above the surface and e is the charge per electron V , the volume ...
Page 595
... volume becomes JVx avy + avz + dx dy dz Əz = div v dv ax მყ where du is written for the volume element dx dy dz . Thus the divergence of v times du represents the net outward flow through the surface bounding the volume dv . A finite ...
... volume becomes JVx avy + avz + dx dy dz Əz = div v dv ax მყ where du is written for the volume element dx dy dz . Thus the divergence of v times du represents the net outward flow through the surface bounding the volume dv . A finite ...
Other editions - View all
Common terms and phrases
alternating current alternating-current ampere amplifier amplitude angle angular anode antenna applied approximately armature assumed atom axis calculated capacity cathode cell characteristic charge circuit coefficient coil component condenser conducting conductor considered constant curl current flowing curve deflection density determined dielectric dielectric constant direct-current direction discharge effective electric field electromagnetic electromotive force electrons electrostatic element energy equal equation flux force frequency function galvanometer given grad grid hence impedance induction integral ions known Laplace's equation length linear load magnetic field magnetic moment magnitude maximum measured metal meter negative obtained ohms oscillations output parallel phase plate positive potential difference potential wave potentiometer produced proportional quantities R₁ radiation radius ratio reactance region represents resistance resonant rotation shown in Fig solenoid solution surface temperature terminals theorem torque tube unit V₁ vector velocity voltage volts wire written zero