minus-squarePilkins@lemmy.worldtoAsk Science@lemmy.world•Why do many microwave ovens hum in an interval of a minor 7th?linkfedilinkEnglisharrow-up1·2 years agoThere is a fan running and then the actual microwave itself. If you lower the power setting, you can hear the fan stay on consistently but hear the microwave shut off and on. If the power is at 100%, the microwave runs the entire time. linkfedilink
There is a fan running and then the actual microwave itself. If you lower the power setting, you can hear the fan stay on consistently but hear the microwave shut off and on. If the power is at 100%, the microwave runs the entire time.