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Resistance of a Wire How does changing the length of wire affect the resistance? Prediction I think as the length of the wire increases the resistance increases. This is because there are more atoms for the electrons to collide into which slows down the flow of electrons I think that as I double the length of wire the resistance will double because there are twice as many atoms to slow down the flow of electrons. Length (cm) Resistance (ohms) 5 0.5 50 3.5 100 6.8 This table is from an experiment using Nichrome wire with a 0.5mm diameter. It shows that the resistance doubles when the length of wire doubles because there are twice as many atoms that will slow down the flow of electrons in the wire. Variables * Type/Material of wire * Diameter of wire * Length of wire * Current * Voltage What To Do * Change the length of wire * Measure voltage across the wire at 0.2 and 0.4 amps to calculate resistance Fair Test...

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