“How can we analyze varying voltages?”
With the invention of alternating current, voltages are no longer buying too strict linear patterns. In fact, many now oscillate in a sinusoidal fashion. But how can we analyze this voltage? Well, what if we were to simply hook up our circuit to a machine that can visualize these voltage swings in real time? This is the idea behind an oscilloscope and is used in engineering laboratories all over the world.