This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Sine wave .svg Image Sine wave Sine wave with effective value HI The solid line represents the sine function with the ordinate labelled in degrees degrees pi radians one cycle The effective value of the waveform is the rootmeansquare value and can be thought of the constant voltage that would transmit power at the same rate as