The following symbols show the different components that can be found in an electrical circuit. Diodes close diodeAn electrical device that allows current to flow in one direction only.

However, electrical energy must be changed into other forms of energy before we can use it. The symbol for power is \(P\), it is measured in Watts (\(W\)). The symbol for energy is \(E\), it is ...

and they've now declared that "anyone can use an electric toilet with confidence". They also hope that the standard symbols will help sales of the high-tech toilets, complete with their hot-water ...