## Principles of Electricity and Electromagnetism |

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Page 89

It will be seen that there is a close analogy between the electrostatic field and the

state of dynamic equilibrium represented by the steady

The chief difference is that in the latter case there is a continuous dissipation of ...

It will be seen that there is a close analogy between the electrostatic field and the

state of dynamic equilibrium represented by the steady

**flow**of electric charge .The chief difference is that in the latter case there is a continuous dissipation of ...

Page 90

28 ) the integrands may be equated , yielding the following differential equation •

External source of electricity - - - - - - Lines of electric

3 . 8 . - Illustrations of the surface integral of normal

28 ) the integrands may be equated , yielding the following differential equation •

External source of electricity - - - - - - Lines of electric

**flow**Soin . ds = - og / at Fig .3 . 8 . - Illustrations of the surface integral of normal

**flow**and the divergence of ...Page 92

Since the tangenMedium I Lines of current

on both Medium 2 sides of the boundary , this equation implies that the relation

between the - O cot 0 , - 02 cote angles made by the lines of force and Fig . 3 . 10

.

Since the tangenMedium I Lines of current

**flow**tial component of E is the sameon both Medium 2 sides of the boundary , this equation implies that the relation

between the - O cot 0 , - 02 cote angles made by the lines of force and Fig . 3 . 10

.

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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