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Factors Affecting the Resistance of a Metal Wire.
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Physics AT1: Factors Affecting the Resistance of a Metal Wire. Planning. I am going to test which factors affect the resistance of a metal wire, of which there are four, these are: the length, the type, the width and the temperature of the wires. I will use the equation I=V/R to work out the resistance of the wires, after finding out the voltage when the current is altered. I will use a variable resistor to vary the current throughout the circuit and take readings of the voltages corresponding to that current. In order to make this experiment fair; I will keep the width, temperature and type of wire constant. I shall investigate the changes in resistance when the length of the wire varies as this is the easiest variable to change because monitoring temperature is difficult, as is being certain of the width of a wire. I am not changing...
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