The behavior of microwave ovens can vary depending on the specific model and its settings. In general, when you press the start button on a microwave oven, it initiates the cooking process and starts the timer countdown.
When the cooking time is complete, many microwaves will emit a series of beeps to alert you that the food is ready. However, whether the oven turns off immediately after the beeping or continues to operate on a low power setting can depend on the specific features and settings of the microwave.
Some microwaves may have a default behavior of automatically turning off after the beeping stops, while others may continue to operate until manually turned off. There may also be options or settings to customize the behavior of the microwave, such as having it automatically turn off or continue on a low power setting after the cooking time is complete.
It's recommended to consult the user manual or instructions for your specific microwave model to understand its specific features and behavior when it comes to turning off and beeping.