Uncharged lines - opracowanie

Uncharged lines If we assume a line is initially uncharged, and we apply a signal at the source end, we
will launch a forward wave, but we will have initially no backward wave, since there is
no source at the load end, and the forward wave will not yet have reached the load to
produce a reflection. Thus we assume that, at least for a time, Vr = 0 and Ir = 0 at the
input.
Thus, the input resistance of an initially uncharged line is initially equal to the characteristic
impedance.
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