Resistance in a Wire.

METHOD: Equipment Nichrome Wire Ruler Power Supply 2x Crocodile Clips 4x Wires Ammetre Voltmeter Before I started the experiment, I made a trial test using a type of software called "Focus Educational Software Science Investigation. Here are the results of the experiment. Unfortunately, the software only gave the voltage and current in two decimal places. This is why the r2 was not 1 but an extremely good 0.9991. R2 is a mathematical value given on a graph …

…have an ammetre and a voltmeter that had at least three decimal places. In addition, instead of a wide crocodile clip, which may be rusted and affect the resistance, I would have point's contacts, which is extremely accurate as it has minimal and precise contact with the wire. In addition, I will make sure hat there are no kinks in my wire as this can make the wire longer and therefore, make the test unfair.