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144 PEOPAGATION OF ELECTRIC WAVES ALONG CONDUCTORS
onwards along the second, third, and other wires by H2, Hs, etc. equations are —
It is hardly necessary to detail obvious particular cases.
The success of the method used in these problems depends upon assumption of a great wave-length. This, of course, constitutes a limita but it has the advantage of eliminating the irregular motion at the junct In the two-dimensional examples it might be possible to pursue the app mation by determining the character of the irregular waves, at lea: a certain extent, somewhat as in the question of the correction for the end of an organ pipe.c forces yield two equations, which may be regarded as expressing that the currents are the same on the two sides along SB, and that, since the section is at a negligible distance from the insulated end, there is no current in A A. Thus