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An Experiment to investigate how the length affects the resistance of a wire.
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An Experiment to investigate how the length affects the resistance of a wire. Planning I will do an experiment to investigate how the resistance of a wire changes with the length. I will measure the current, voltage, length and diameter of the wire and I will measure the diameter of the wire using a micrometer screw gauge and use an ammeter to measure the current. I will measure the voltage with a voltmeter and a ruler to measure the length. I will use Ohm's law to find the resistance after I have gathered my results. Ohms Law states that: Resistance = Voltage Current R = V I Also Ohm's law states that the current flowing through a metal wire is directly proportional to the potential difference (voltage) across it, provided the temperature remains the same. The temperature of the wire may affect the resistance of the wire. The higher the temperature, the higher the...
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