just a silly thing for laughing: if Volts = Resistance × Current, what is the voltage in a charged perfect capacitor, where the resistance between the plates is infinite, with zero current flowing between them? ... hmmm, how much is Infinite × Zero? so, the charged electrons matter in this capacitor? Can we say a capacitor does not hold "Voltage", but "charged potential capacity to creates current"? Another: If Resistance is Voltage / Current, a simple wire connected to nothing, flowing zero Amperes, will has zero volts on its ends. So, what is its resistance? Zero / Zero = Zero? It can be an isolant!!! and will has a zero resitance in this situation??? -------------------------------------------------------- Wagner Lipnharski