A qbit is no more "physical" than a normal bit. Both are measures of the information stored in an object; they are not the object itself.
In the case of a qbit, the physical thing is any object which exhibits quantum behaviors and can remain in "coherence" for a reasonably long period of time. Obviously any object exhibits some quantum behavior, but most quickly "decohere" due to thermal noise -- collisions between particles.
Just like normal-bit carrying objects can store the information in many mediums (charges in RAM, magnetic regions, on hard disks, photons over fiber optic cables, etc.) objects which store qbits also have been created from many materials. Wikipedia has a pretty nice list, but I'd point out the most interesting examples -- electrons, photons, and "quantum dots," which are very popular media for storing qbits.
Whether this qualifies as "electronic" is really up to your own definition of "electronic." However, I will point out that all modern implementations of quantum computers use a tremendous amount of electrical equipment to maintain these qbits in their coherent state, and to help them interact with each other in the desired ways. This is akin to how, in fiber optics, all of the data is transmitted with photons, but a tremendous amount of electrical equipment is used to get it into that form in the first place!