What are the different design types of a aluminum 24 foot extension ladderplz help.
Tim is correctAt ordinary temperatures, aluminum is best by weight of all and almost as good as silver and copper by volume, but an ohmmeter can lead you astray as exposure to air puts an aluminum oxide coating on aluminum that is a good insulatorWorse ohmmeters typically read 0.1 ohms for all but a very long or very thin graphite rodThe same for aluminum if you scrap off the oxide coating Neil
You'll not be able to obtain the resistance of these materials using a normal ohmmeterThere are however tables available on various conductivity of materialsSince resistivity is a function of conductivity, you'll be able to find your answer by looking at its conductivity.
