DC rms vs AC rms

 1. Square Wave

  

eg.) 0 - 10 V square wave

      → ac rms: 5Vrms, DC: 5V

      → true rms: 7.07Vrms

      → peak of fundamental freq sine wave: 5*4/pi Vp 

      → ac rms of fundamental freq sine wave: 5*4/(pi*sqrt(2)) Vrms

2. ETC.