## Principles of Electricity and Electromagnetism |

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Page 30

If the region is free of charges and the field is produced by charged surfaces or by

charges that can be excluded from the region by closed surfaces drawn about

them , Poisson ' s equation

If the region is free of charges and the field is produced by charged surfaces or by

charges that can be excluded from the region by closed surfaces drawn about

them , Poisson ' s equation

**reduces**to v2V = 0 ( 1 . 30 ) throughout the charge ...Page 157

3 ) is replaced by the potential wave V , cos wt , i ( wt ) becomes i ( wt ) = AV ;

cosa wt Substituting this in the above integral and

integration from ( - 1 , 1 ) to ( 0 , 7 / 2 ) , together with multiplication by 4 which the

symmetry ...

3 ) is replaced by the potential wave V , cos wt , i ( wt ) becomes i ( wt ) = AV ;

cosa wt Substituting this in the above integral and

**reducing**the range ofintegration from ( - 1 , 1 ) to ( 0 , 7 / 2 ) , together with multiplication by 4 which the

symmetry ...

Page 506

As the grid bias is increased to decrease the interval of flow , 0 ' , the plate

dissipation is

constant , an increase in Es has little effect on the plate dissipation , but the

power ...

As the grid bias is increased to decrease the interval of flow , 0 ' , the plate

dissipation is

**reduced**. Since the difference between EB and E , is approximatelyconstant , an increase in Es has little effect on the plate dissipation , but the

power ...

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angle applied approximately assumed atom axis becomes calculated capacity carrying cell characteristic charge circuit closed coil component condition conducting conductor connected considered constant curve density depends determined dielectric difference direction discharge discussion distance effective electric electrons element energy equal equation evident expression factor field flow flux force frequency function galvanometer given grid hence impedance important increases indicated induction integral ions known length limited linear load losses magnetic magnetic field magnitude maximum means measured mechanical metal meter method negative normal obtained oscillations parallel path period phase placed plate positive potential present produced proportional quantities radius ratio reduced region relation represents resistance respect result rotation seen separation Show shown simple solution space surface temperature terminals transformer tube unit vector volts volume wave wire written zero