Why did they choose to make AC change in time based on a sin wave and not any other math function like quadratic or logarithmic
In: Physics
It’s not necessarily. It’s can be a square wave, a triangular wave, or a sinusoidal wave, depending on where you live.
What’s necessary to be AC is that it oscillates back and forth.
A sinusoid is the natural form of an oscilation because it’s the smoothest transition back and forth between two maximums.
Take a circle, track the vertical (or horizontal) position of a point on that circle over time, and you will get a sinusoid.
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