10. Resistivity: Which Metal is The Best Conductor?
Electrical resistance is the total opposition to the passage of electric current, and it depends on the material and length of what the current is passing through. Therefore, the number varies depending on where is resistance measured. In this experiment, you can calculate resistivity and conductivity of the materials you choose, for example, copper, and you can do that by applying Ohm’s law. The goal is to calculate which material is more resistive and conductive and for this project, you will need lots of wires, copper, and iron. You will also need a ruler, a voltmeter, and ammeter as well as wire cutters. Next, you need to attach the positive lead of the ammeter to the negative terminal of the battery, and the negative lead of the ammeter should be attached to the end of one of the wires. You can take a look at to find details of the procedure.
