Principles of Electricity and Electromagnetism |
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Page 163
... expression for the current represented by Fig . 5.17 plus a similar expression displaced along the time scale half a period . On adding to Eq . ( 5.13 ) a similar expression with wt replaced by ( wt + π ) , we obtain 1 i = П 47/1 1 + ...
... expression for the current represented by Fig . 5.17 plus a similar expression displaced along the time scale half a period . On adding to Eq . ( 5.13 ) a similar expression with wt replaced by ( wt + π ) , we obtain 1 i = П 47/1 1 + ...
Page 227
... expression can be neglected in comparison with the first . Also the coupling capacity C is generally large in comparison with the interelectrode capacities , which leads to further simplifications . At fairly large frequencies ( where ...
... expression can be neglected in comparison with the first . Also the coupling capacity C is generally large in comparison with the interelectrode capacities , which leads to further simplifications . At fairly large frequencies ( where ...
Page 440
... expression for Z ' is Z ' = ( R ' * + X ' ) 1⁄2 = ( w2C2k 12 R2 + w2L2 w2C2R2 + ( w2LC ( 13.16 ) 1 ) 2 , From this expression the values of the parameters that render Z ' a maximum can be determined by differentiation . The very large ...
... expression for Z ' is Z ' = ( R ' * + X ' ) 1⁄2 = ( w2C2k 12 R2 + w2L2 w2C2R2 + ( w2LC ( 13.16 ) 1 ) 2 , From this expression the values of the parameters that render Z ' a maximum can be determined by differentiation . The very large ...
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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