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Determine how the effect of electrical resistance changes with varied length of a metal wire.
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Electrical Resistance Coursework Aim This coursework is based on the topic of electrical resistance. The aim of this coursework is to determine how the effect of electrical resistance changes with varied length of a metal wire, which is the factor I will be investigating. In order to do this, I will measure the resistance of the wire at equal length intervals, using a voltmeter in parallel and ammeter in series, and then record the change in resistance in relation to the length of the wire. In the end I am going to find out as to how resistance of a metal wire varies in relation to the length of the wire used. Theoretical Background Firstly, resistance shall be dealt with. Electrical resistance is the opposition to the flow of electric charge (current). With a given energy source, such as a battery, the size of the current that flows is determined by the...
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