I've been learning how microwave ovens work and haven't been able to find any information on the practical way manufacturers create variable power settings.
If I understand magnetrons correctly they are only designed to emit one wavelength/frequency, so is there something I'm missing about how the same wave can just be emitted at a lower power? I was thinking it might be similar to the difference of volts vs amps but that doesn't really explain anything.
Or would one just oscillate power to the magnetron, like a separate duty cycle kind of thing, to lower the average molecular effect?
Really trying to understand the physics of what determines a particular power setting.