Circuit -- Why a more accurate value of the resistance? Note: CURRENT CAN FLOW THROUGH THE VOLTMETER IN THESE CASES. Why does the second setup as shown by the arrow in the picture give a more accurate value of the resistance of that wire? It says the current in setup 1 on the left measured by the ammeter includes both the current through the wire and current through the voltmeter, but for setup 2 on the right, it says this setup the ammeter will measure the current in the wire only. They are both series circuits, so i cant get why there is a difference in currents for the 2?