# Tag Info

RMS means square mean root . i.e. take square add and take mean then take square root. If you take square of ac i.e. sinusoidal waveform the parts from $0$ to $\pi$ become identical to the part between $\pi$ to $2.\pi$. Hence if you add from $0$ to $n.\pi$ and divide by n you will essentially left with one lobe. That's why you can only use one lobe to get ...