Convert RMS voltage to Peak and Peak-to-Peak values for sinusoidal waveforms. Critical for AC circuit analysis and understanding insulation requirements.
RMS (Root Mean Square) is the 'effective' voltage that delivers the same power as an equivalent DC voltage. 120V AC wall power is an RMS value.
Insulators and capacitors must be rated to withstand the Peak voltage (approx 170V for 120V AC), not just the RMS average.
Vpeak = Vrms * 1.414