At least in the early days, electric locomotives had to pull passenger trains equipped with steam heating. Have there been any electric locomotives with steam-boilers or did the railroads use additional cars with boilers? If the locomotives had boilers, did the use scoops to take water from troughs?
I know the GG1s had boilers, and not electric ones either. (Don’t know the details.) I expect most electric passenger locos would have boilers as all the passenger stock was steam heated; nothing built exclusively for the electric lines except the self powered MUs. They probably didn’t pick up water as the amount of water for heating was small compared to propulsion.