Principles of Electricity and Electromagnetism |
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Page 17
... surface is then the total solid angle subtended by the surface at the point occupied by q . It can be seen from Fig . 1.11 that if q lies outside the surface , each infinitesimal conical solid angle do cuts the surface an even number of ...
... surface is then the total solid angle subtended by the surface at the point occupied by q . It can be seen from Fig . 1.11 that if q lies outside the surface , each infinitesimal conical solid angle do cuts the surface an even number of ...
Page 18
... surface is zero , it can enclose no net charge . As this hypothetical surface can be expanded till it lies just beneath the surface of the conductor , there can be no charge within the conductor itself and any charge carried by it must ...
... surface is zero , it can enclose no net charge . As this hypothetical surface can be expanded till it lies just beneath the surface of the conductor , there can be no charge within the conductor itself and any charge carried by it must ...
Page 240
... surface of the cathode . Furthermore , positive ions are drawn to the cathode and if these strike it with sufficient energy , they may alter the surface and change its work function . For this reason the potential drop in tubes with ...
... surface of the cathode . Furthermore , positive ions are drawn to the cathode and if these strike it with sufficient energy , they may alter the surface and change its work function . For this reason the potential drop in tubes with ...
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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 dynamic resistance effective electric field electromagnetic electromotive force electrons electrostatic element energy equal equation flux force frequency function galvanometer grad harmonic hence impedance induction integral ions known length linear load magnetic field magnetic moment magnitude maximum measured meter negative obtained ohms oscillations output parallel phase plane plate current positive potential difference potentiometer quantities R₁ radiation radius ratio reactance region represents resistance resonant rotation scalar shown in Fig solution surface temperature terminals theorem torque transconductance triode tube unit vacuum tube vector velocity voltage volts wave wire written zero