TitleIntroductionAimHypothesisVariablesMaterialsMethodsResultsData collectionData processingDiscussion, evaluation and conclusionDiscussion and review Evaluation and improvementConclusionIB Internal Assessment: The effect of temperature on the conductivity and resistance of resistor (metal)IntroductionThis experiment shows the impact of temperature alterations to the conductivity of the object being experimented. In this case experimenter uses resistor in order to get the precise amount of resistance that have been set in the making.
Research Question: To what extent and how does temperature affect resistance and conductivity of a fixed resistor?Aim of experimentThe aim of this experiment is to investigate how temperature impacts the conductivityand resistance of a conductor. Using resistor, this experiment will try to analyse ifthe flow of electric current through resistor is affected by varying the temperature of thewire. At the conclusion of the experiment we should be able to have a clear understandingof the relationship between temperature and the conductivity of the material. We should alsoable to prove the initial hypothesis (as stated in Section 4) as true or false.HypothesisIf the temperature of the resistor increases the resistance of the resistor will increases which also causes an decreases on the conductivity (the flow of electric current through the wire).VariablesIndependent VariableAmpereDependent VariablePotential Difference, ResistancePotential Difference: The potential difference amount will depend on the temperature changesResistance: R=VIso if the V changes so will the RControlled VariableMaximum temperature of the wireIt will be around 80 degrees C (maximum temperature)MethodsPrepare all of the stuffs and make sure it all works. Connect the jumper wire to the 200 ohm resistor also connect the 12V power supply, ammeter and voltmeter using the jumper wires.
Set the circuit as planned and given above the picture. Putting the ammeter in the series of the circuit and voltmeter parallel to the circuit.And then turn the infrared thermometer on and put it 0.5 mm away from the coil the amount distance is the same as the diameter of the wire. To record the data after we place it near the coil you just need to press the “ON” button to record it and keep pressing it to have the data as the temperature keep increasing. Then keep recording the temperature constantly and stop recording when it reaches 80 degrees C, and then we can repeat this experiment 2-3 times make ourselves convinced about the data that we get.After it reaches 80 degrees C, don’t forget to record the data for the resistance, ampere and potential difference.Trial 1TemperaturePotential Difference (Volts) 0.1VCurrent (mA)Resistance (ohms)41.614.068.0205.8842.014.067.9206.1844.414.067.8206.4845.514.067.5207.4046.214.067.5207.4050.414.067.4207.7151.414.067.1208.6452.414.067.0208.9554.414.067.0208.9561.314.067.0208.9562.514.066.9209.2663.514.066.9209.2676.914.066.9209.2678.914.066.8209.5880.214.066.8209.58Trial 2TemperaturePotential Difference (Volts) Current (mA)Resistance (ohms)4014.067.8206.4842.414.067.7206.7943.114.067.7206.7945.214.067.6207.104614.067.5207.4049.114.067.4207.7752.314.067.3208.0255.514.067.1208.6460.214.067.0208.9563.814.066.9209.2665.114.066.8209.5868.914.066.8209.5872.314.066.8209.5874.814.066.7209.8977.114.066.7209.89