Tuesday, October 07, 2008

Units for resistance and conductance.

Resistance is calculated as R=V/I.

You know that the units are OHMS.

However, because R=V/I, we could say that resistance is measured in Volts per Amp (VA-1)

Conductance is calculated as G=I/V.

The units are Siemens.

However, because G=I/V, we could say that conductance is measured in Amps per Volt (AV-1)

If you bear this in mind, you'll be able to do Q1 on page 5. (but note that they use milliAmps per Volt mAV-1)