If you turn on an electric stove with no cookware on it, several things may happen depending on the stove's design and safety features:
Heat generation: The electric heating element or coil on the stove will start to generate heat, as it's designed to do. However, since there's no cookware to absorb the heat, it can lead to a buildup of heat on the stovetop surface.
Temperature control: Modern electric stoves usually have temperature control mechanisms, such as thermostats, to regulate the heat output. Without cookware, the stove's temperature may rise rapidly, triggering the temperature control system to cycle on and off to maintain the desired temperature setting. This cycling may continue until you turn off the stove.
Safety features: Many electric stoves have safety features built in to prevent accidents. Some stoves may have sensors that detect if there's no cookware present on the heating element. In such cases, the stove might not even activate or may automatically shut off shortly after being turned on.
Overheating: If the stove's safety features fail and it continues to generate heat without cookware to absorb it, the stovetop's surface could become very hot, posing a risk of burns or fire hazards. This is why it's essential never to leave an electric stove unattended or without cookware on it.
Energy waste: Running an electric stove without cookware is an energy waste and may increase your electricity bill unnecessarily.
In summary, turning on an electric stove without any cookware on it can lead to heat generation, possible activation of safety features, potential overheating of the stovetop surface, and energy waste. Always make sure to place cookware on the stove before turning it on, and never leave it unattended while it's on. If you encounter any issues with your stove or have specific questions about its operation, it's best to refer to the manufacturer's instructions or contact a qualified professional.