Cells manage a wide range of functions in their tiny package — growing, moving, housekeeping, and so on — and most of those functions require energy. But how do cells get this energy in the ...

where power enters the house. We can see how circuits work, and represent them with some simple diagrams, using basic electrical components like these. You start with a cell, or combination of cells.

a fuel cell converts chemical energy to electrical energy. All fuel cells have the same basic configuration, an electrolyte and two electrodes, but there are different types of fuel cells ...