Hello guys I got a small question with voltage and charge. If voltage provides potential energy for charges why doesn't the voltage decrease all the time when the charges are moving. I mean I only see voltage change when their are resistors and stuff but my question is shouldn't the voltage change all the time because the charges are losing potential energy as they are moving. Also can you explain potential difference to me. I'm bit confused with that. My electronic undertstanding is not really good and your help would be really appreciated Thanks!!