Thus, the peak mains voltage in the USA is around 120 × √2, or 170 volts. The voltage from peak to peak, which is twice this, is around 340 volts.
Assuming the source is a pure sine wave, peak values may be determined from RMS values using the method above, which indicates VP = VRMS × √2.
The maximum voltage value relative to zero volts is known as peak voltage, abbreviated as VP. Since it expresses the greatest value of the waveform, the amplitude is comparable to the peak value. In waveform analysis, the peak and amplitude values are more frequently employed than in AC electrical work.
The difference between the greatest and lowest voltage values in an AC circuit is known as peak-to-peak voltage (abbreviated as VPP). The peak-to-peak value in AC applications will be twice as high as the peak value. Peak-to-peak values are utilised less frequently with AC electrical operations and more frequently in waveform analysis or amplifier construction.
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