Principles of Electricity and Electromagnetism |
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Page 289
... curl curl -curl di 1 dl However , dl is independent of the coordinates of the point at which B is measured , so the last term is zero ; hence μου B = Hai Scurt ( d ! ) curl ( ) 4π But since the differentiation involved in the curl and ...
... curl curl -curl di 1 dl However , dl is independent of the coordinates of the point at which B is measured , so the last term is zero ; hence μου B = Hai Scurt ( d ! ) curl ( ) 4π But since the differentiation involved in the curl and ...
Page 314
... curl of Eq . ( 10.3 ) curl curl E = -0- We have also the general vector equation a curl B at curl curl i , grad div i , = = - 21 , And it will be recalled that i , σE . Assuming for the moment that there is no accumulation of charge so ...
... curl of Eq . ( 10.3 ) curl curl E = -0- We have also the general vector equation a curl B at curl curl i , grad div i , = = - 21 , And it will be recalled that i , σE . Assuming for the moment that there is no accumulation of charge so ...
Page 542
... curl H = σE + ƏD at It will be further assumed , as in the previous sections , that x and μ are constants . On taking the curl of Eq . ( 16.4 ) and substituting the complete expression for the curl of H , the following equation is obtained ...
... curl H = σE + ƏD at It will be further assumed , as in the previous sections , that x and μ are constants . On taking the curl of Eq . ( 16.4 ) and substituting the complete expression for the curl of H , the following equation is obtained ...
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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