Principles of Electricity and Electromagnetism |
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Page 16
... element composing the surface times the normal component of the electric field at the element . The outward normal component is reckoned as positive . If ds represents an element of the surface , the contribution to the sum made by this ...
... element composing the surface times the normal component of the electric field at the element . The outward normal component is reckoned as positive . If ds represents an element of the surface , the contribution to the sum made by this ...
Page 150
... element contains a power source and has a negative dynamic resistance , it may generate such oscillations . An element of this type is sometimes said to be " unstable . " Individual elements with negative slopes or falling ...
... element contains a power source and has a negative dynamic resistance , it may generate such oscillations . An element of this type is sometimes said to be " unstable . " Individual elements with negative slopes or falling ...
Page 156
... element in an alternating - current circuit is some- what simpler for heating may be Current neglected and the static characteristic is followed for all frequencies for which the element is a pure resistance . A single thyrite element ...
... element in an alternating - current circuit is some- what simpler for heating may be Current neglected and the static characteristic is followed for all frequencies for which the element is a pure resistance . A single thyrite element ...
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alternating current alternating-current amplitude angle angular velocity anode applied approximately armature assumed atom axis calculated capacity cathode cell centimeter characteristic charge q circuit coefficient coil component condenser conduction conductor considered copper current density current flowing curve cylinder deflection determined dielectric constant direct-current discharge distance effective electric field electromotive force electrons electrostatic element energy equal equation ferromagnetic filament flux force frequency function galvanometer given grad grid hence hysteresis impedance induction insulating integral known Laplace's equation linear load magnetic field magnetic moment magnitude maximum measured medium metal meter molecules negative normal obtained ohms parallel plate polarization potential difference potential wave potentiometer produced proportional quantity R₁ radius ratio rectifier region represents resistance rotation Show shown in Fig solenoid solution substance surface temperature terminals theorem torque tube V₁ vector voltage volts wire written zero