No, turntables do not act as a minimum load in a microwave oven. The primary purpose of a turntable in a microwave oven is to rotate the food during cooking. This rotation helps to ensure more even heating throughout the food by exposing it to the microwave energy from different angles.
The concept of a minimum load typically applies to certain types of electronic devices or appliances that require a minimum amount of power or load to operate properly. For example, some audio amplifiers or speakers may require a minimum load impedance to function correctly and prevent damage to the equipment.
However, microwave ovens do not have a minimum load requirement like audio amplifiers. They are designed to operate with or without food on the turntable. When the oven is turned on, it generates microwave energy regardless of whether there is food present or not. The turntable's purpose is to improve the distribution of the microwave energy within the oven cavity, ensuring more consistent heating of the food.