Do we need to consider a PCB trace as a transmission line when the Input is a DC signal.
As per my knowledge we used to consider PCB trace as a transmission line when length of the trace is more than Wavelength/20.
Wavelength is derived from the signal frequency ,for DC signal frequency is zero so it has infinite wavelength associated with the signal. So no need to consider the PCB trace as transmission line at DC. May I know I am correct or not.