Originally posted by lutorm
View Post
You are right. Very low power frequency AC (60 Hz), like DC, follows Kirchoff's law for the practical line lengths. However at RF level, wavelengths being less than few hundred feet, Kirchoff's law starts become invalid at wavelength scale, but if the line/antenna is split into very small segments, it still holds good at segment level. Current & voltages on a wire vary from zero at nodes to maximum at intemediate peak points, following the shape of a sine wave.
Thanks for raising this issue, as it prompted me to study further and discover new facts and clear any misundetstandings I had.
Best Regards
Comment