Is there any difference between the static charges generated by rubbing a glass rod with silk or a rubber rod with cat fur and the charges that flow (from a battery) through wires in an electric circuit? Give evidence for your answer.
I'm not sure I'm the best person to answer this question, hopefully someone with more knowledge will come in and offer a more detailed answer, but for the mean time,
The charges that develop from the glass/silk & plastic/fur systems are generated from the breaking of the molecules when you rub the two together. ie: when you rub fur on plastic, the molecules in the fibers of the fur split un-evenly, and part of it is left with a net positive charge, and the other is left with a net negative charge (most of the negative pieces stick to the plastic, while most of the positive parts stick to the fur) . For the glass/silk scenario, I'm not sure if its the glass molecules or silk molecules that break, but a similiar situation occurs.
The charged partics that make up the current in the wires between a battery are solely electrons, not broken molecules. (The positive charges ( or nucleons ) do not move).