Resistance circuit (Electricity) Question: Please can you tell me where I can get a diagram of a circuit for my coursework on measuring the amount of resistance of a piece of wire. I need the diagram to have a voltmeter and an ammeter in. 0-12 V DC Answer: The main thing to remember is that the ammeter is always connected in series and the voltmeter in parallel to the piece of wire whose resistance you want to measure. 0.86 5.00 Volts d.c Amps d.c