Q. How does the extension box work?

Answer

Essentially, an extension board is a sturdy metal or plastic box with a number of electrical outlets on it. They use a retractable extension cord to make plug-in power sources more accessible. Keeping the electricity flowing to the device using a longer extension cable is a more expensive proposition. When an appliance is plugged into an extension cord instead of directly into an outlet, the resulting power consumption is higher. This hike may be inconsequential for some products, but it will build up for others over time. When asked whether or not an empty socket consumes power, the correct response is "no," because electricity does not flow through the socket unless a plug is inserted and an appliance is turned on.