Suppose that someone has an electronic cooking utensil such as a Crock Pot or a rice cooker that they use on Yom Tov. Perhaps they set a timer before Y"T in order that it should start cooking during the holiday.
If that electric appliance is plugged into an outlet that is regulated with a timer, can the appliance be unplugged when the timer is in the off condition such that the outlet is not functioning?
To me, it seems like something that should not be permitted, but I cannot think of a reason why it would not be. On Shabbos, there would be an issue of muktzeh, but I do not believe that such a utensil would be considered muktzeh on Yom Tov where its work is permitted.
For the purpose of this question, assume that the timer going to the "off" position completely cuts off the flow of electricity to the appliance. I am not sure whether this is actually the case. If you happen to know, please provide that information!