STEADILY ALTERNATING CURRENT ON A LONG LINE. 367 



wave steady state, in which the volume energy of electric flux is 

 different from, and ordinarily much greater than that of the mag- 

 netic flux, at any one point in the dielectric. The transmission 

 process retains, however, the same general character, the effect 

 being one of summation of travelling waves and wave energies. 



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