Which statement correctly describes peak-to-peak value in relation to peak for a sinusoidal signal?

Which statement correctly describes peak-to-peak value in relation to peak for a sinusoidal signal?

• A. The peak-to-peak value is equal to the peak
• B. The peak-to-peak value is four times the peak
• C. The peak-to-peak value is twice the peak
• D. The peak-to-peak value is half the peak

Answer: (C)

For a sinusoidal signal, the peak value is the maximum positive amplitude, and the peak-to-peak value is the total vertical swing from the top to the bottom of the wave. In a zero-centered sine, the top is +Vp and the bottom is -Vp, so the distance between them is Vpp = (+Vp) − (−Vp) = 2Vp. Therefore, the peak-to-peak value is twice the peak.

For a sinusoidal signal, the peak value is the maximum positive amplitude, and the peak-to-peak value is the total vertical swing from the top to the bottom of the wave. In a zero-centered sine, the top is +Vp and the bottom is -Vp, so the distance between them is Vpp = (+Vp) − (−Vp) = 2Vp. Therefore, the peak-to-peak value is twice the peak.