## Principles of Electricity and Electromagnetism |

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Page 99

(3.17) If the inhomogeneity is such that k/g is constant, the charge

vanishes, but this condition is seldom fulfilled in practice. For good conductors

the electric field is small for ordinary currents and this volume

...

(3.17) If the inhomogeneity is such that k/g is constant, the charge

**density**vanishes, but this condition is seldom fulfilled in practice. For good conductors

the electric field is small for ordinary currents and this volume

**density**of charge is...

Page 99

through the area ds perpendicular to the current

the general anisotropic medium the field E is not parallel to i, but if the angle

between these vectors is 0, the potential difference between the two areas ds a ...

through the area ds perpendicular to the current

**density**i, is i, ds per second. Inthe general anisotropic medium the field E is not parallel to i, but if the angle

between these vectors is 0, the potential difference between the two areas ds a ...

Page 99

the existence of a charge

inhomogeneity is such that k/a is constant, the charge

condition is seldom fulfilled in practice. For good conductors the electric field is

small for ...

the existence of a charge

**density**q, given by 4. – so i, grad; (3.17) If theinhomogeneity is such that k/a is constant, the charge

**density**vanishes, but thiscondition is seldom fulfilled in practice. For good conductors the electric field is

small for ...

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alternating current alternating-current amplitude angle angular velocity anode antenna applied approximately armature assumed atom axis calculated capacity cathode centimeter characteristic circuit coefficient coil component condenser conducting conductor considered curl current flowing curve deflection density determined dielectric constant direct-current direction discharge displacement distance effective electric field electromotive force electrons electrostatic element energy equal equation ferromagnetic flux force frequency function galvanometer given grad grid hence hysteresis impedance induction integral ions known Laplace's equation linear load magnetic field magnetic moment magnitude maximum measured meter motor negative normal obtained ohms oscillations output parallel phase plane plate polarization positive potential difference potentiometer produced proportional quantity radiation radius ratio reactance region represents resistance resonant rotation Show shown in Fig solenoid solution substance surface temperature terminals theorem torque transformer tube unit vector voltage volts wave wire written zero