After spending a couple of hours on the internet searching for answers I'm hoping Stack Exchange can help me.
Recently, using simulation software, I used an oscilloscope to calculate the resonant frequency of the circuit, by measuring the sine wave of the resistor. I used the equation 1/T, with T being the time period between the start of the wave and the peak of the wave. this gave me Wn (or Wo, whatever your preference). My reasoning behind this was that resonance is when Xl = Xc, meaning the circuit it purely resistive so the resistance would be at it's peak.
When doing the same tests in the lab irl I was told to measure Wn over the capacitor instead, as Q factor is at it's highest when at at resonance as Q=VC/VS.
Both methods gave the same answer, and I'm sure there is a simple explanation as to why, but I simply cannot get my head around it right now and information online is phrased in a manner that is not helping me to understand.
Which method is better? Are the reasonings for using either method correct?