What energy transformation in slow cooker?

A slow cooker is an electrical appliance used to cook food over a long period of time at a low temperature. It consists of a heating element, a heat-resistant container, and a lid. The heating element is usually located at the bottom of the cooker and is responsible for generating heat. The heat from the heating element is then transferred to the food through the heat-resistant container. The food is typically placed in a ceramic or glass container that is placed inside the slow cooker. The lid helps to trap the heat and moisture inside the cooker, allowing the food to cook slowly and evenly.