First you will need a constant current source. Do NOT connect the voltmeter to the constant current source without the resistor to be measured already connected. Do NOT use a battery, it is a voltage source. Then follow these steps to measure a resistor:
- connect the voltmeter across the resistor to be measured
- connect the voltmeter-resistor combination across the constant current source
- read the voltmeter and record the voltage
- disconnect the voltmeter-resistor combination from the constant current source
- disconnect the voltmeter from the resistor
- calculate the resistance from the measured voltage and current from the source with Ohm's law in this form: R = V ÷ I
Its much easier to just use the ohms setting on a multimeter.
