If you plug in an electrical charger or an adapter of an electronic device such as a mobile phone or a laptop into the power socket, but you don't actually attach the device into the charger, the charger does not consume significantly as much electrical energy as it would if the device were connected and drawing power.

Is it the same way for an induction cooktop? Does it also only consume significant amount of energy when a cookware is actually on top of it and getting heated?