Hello! I was just wondering, does all the power get wasted in adapters? ( I mean phone chargers etc.) I mean, if I plug my adapter in the 240 V wall outlet which has a specific amperage and charge my phone, will my electricity bill say that I used the power resulting from the the 240V*(the current) [From the wall outlet] or will it say much less ( the power required by the phone, which is let's say 5V*the current). Thank you for your answers!