Hello Susane,
I am not understanding this line from Core: Electric Cooktop, Oven, and Range Operational Overview
That line is :There’s a little less going on in an electric cooktop than in a gas one. One of the big differences is that, while gas cooktops run on 120 VAC, electric runs on 240 VAC, meaning you have two 120 VAC lines that are 180 degrees out of phase with each other, as we teach in the Basic Electricity module.
But what I am not understand is “meaning you have two 120 VAC lines that are 180 degrees out of phase with each other, as we teach in the Basic Electricity module.”