The resistance R two nodes can be calculated the current flowing through the resistance and the applied voltage are known; i.e. using 1), we have that R An ohmmeter (usually embedded within a voltmeter) applies a known, reference voltage to the and nodes measures the current to then obtain the resistance by R VH. To avoid damage to the multime- ter, no other voltage should be applied to the nodes at the same time The typical resistance range is 1 n to 32 Mn for most multimeters.