Principles of Electricity and Electromagnetism |
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Page 16
... 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 is E ds cos 0 , where is 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 is E ds cos 0 , where is the ...
Page 89
... normal to these axes . And in general the rate of flow of charge through an area ds whose normal makes an angle @ with i , is i , ds cos e or i , ds , where ds is the vector of length ds normal to the area . If a hypothetical closed ...
... normal to these axes . And in general the rate of flow of charge through an area ds whose normal makes an angle @ with i , is i , ds cos e or i , ds , where ds is the vector of length ds normal to the area . If a hypothetical closed ...
Page 291
... normal is positive i Direction of positive normal to surface or H i Direction of circum- scription of boundary or of i FIG . 9.15 .-- Subdivision of a surface bounded by a circuit into infinitesimal elements and the sign convention ...
... normal is positive i Direction of positive normal to surface or H i Direction of circum- scription of boundary or of i FIG . 9.15 .-- Subdivision of a surface bounded by a circuit into infinitesimal elements and the sign convention ...
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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