The resistance of the wire The aim: The aim of my experiment is to see how the length of a wire, effects the depended variable (Resistance). In addition, I will use these results to work out the resistivily of the wire. Diagram: : Ammeter : Voltmeter : Power supply : The piece of wire (component) Apparatus: * The power supply which produces at least 2 Volts because that's the highest value I will be using. * Ammeter: it has to be able to give reading to three significant figures, which are in Milliamps. * Voltmeters: this voltmeter has to be connected in parallel to the component in order to function properly. The reason I'm using it is to make sure that the Potential difference across my circuit is 2 volts all the time. (It has to give reading which are rounded to 3 significant figures) * Also I will use a micrometer to find the cross area of the wire which I need to work out he resistivily of the material. Good connecting wires which will connect my circuit and make a good connecting path for the current to flow through. Variables: * Dependent variables: The res......

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