Hi guys, I have recently started to think about basic electronics and realized that I dont know electricity theory at all cause I couldn't answer a few questions asked by my friend. Imagine an open circuit(forum_pic) Wiill there be any current at all. I understand that when the switch is opened, the circuit is considered to be opened and in opened circuit there is no place for a current. why there is no voltage drop on the resistor when there is no current. I understand that Ohms law tells us that if the current is 0 then the voltage drop is zero. U=IR = 0*R= 0 But i dont understand this on atoms and electrons scale. Could you please explain it to me. What about current that will charge switch right contact. Does it act as a cap?