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Experiment is to investigate different lengths of wires and see if the resistance changes.
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Resistance of wires Theory: The theory of the experiment is to investigate different lengths of wires and see if the resistance changes. What is resistance? The resistance is a measure of how easily the electrons can move through a metal. A low resistance means that the electrons can move easilly and a high resistance means electrons cannot move around as easilly. The resistance can be found out by dividing the voltage by the current. How is the resistance measured? The resistance (R) of a length of wire is calculated by measuring the current (I) present in the circuit, and the voltage (V) across the wire (at the same time) The measurements are then applied to this formula: R = V I What is the current? The current is a measure of the charge that flows per second. Current=charge/time Since the charge on each electron is the same, the current represents the number of electrons flowing per second. If the resistance...
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