Because the power needed to make them work is delivered by a national 'grid' of electrical cables. There is no way to actually transmit power to an appliance through the air. It must be deilvered by cables.
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It is plugged into a wall outlet.
Yes, you can plug a MJ9900 Majestic Combo Washer Dryer into a standard electrical outlet. Make sure the outlet can handle the voltage and amperage requirements of the appliance to prevent any electrical issues.
Inside the "holes" are springy brass fingers that grip the plug prongs when you insert the wall plug, making connection with your home's electrical system.
Yes, an all-in-one scanner should be plugged into a wall outlet to ensure proper power supply and functionality. It is recommended to follow the manufacturer's instructions and use the provided power adapter to connect the scanner to a power source.
Some houses have hard-wired electrical appliances for safety reasons, as they are typically stationary and don't need to be moved around. This type of installation can also provide a more permanent and secure connection compared to plug-in appliances. Additionally, hard-wiring can help prevent electrical hazards that may arise from loose or damaged plugs and cords.