Dear edodell: Wow's analysis covered things quite well. To repeat that, expanding a bit: electric covers the whole wide field that began with the recognition of electricity as a form of energy and an important part of physics.
Electronics is a very important subdivision in which low voltages and currents can be used to operate a very wide range of devices both scientific and domestic.
As for electrical, wow's "nuts and bolts" covers it well enough. The generation, distribution, and installations that permit us to use electricity.