How the Length of a Wire Affects Its rampart In my physical science coursework I am going to investigate the effect of the space of a outfit on its resistance. Resistance is the measure of how comfy it is for up-to-the-minute to hang up through a equip. menstruation is the rate of flow of tear through a conductor, and it is c areful in amps using an ammeter. To serve well me plan my probe I have completed a preliminary look into in which I investigated the effect of the weightiness of a fit out on its resistance, using three constantan outfits and one doodly-squat electrify. I found that the resistance change magnitude as the thickness of the wire decreased, however, when I did the test with the copper wire I found that it was so unresistant that there would not be a lot of point in conducting my examine using a copper wire beca practice session I would not really be able to comp are the results. I therefore decided to use a wire of a higher resistance; con stantan, because it go out hold me to get more than reliable and comparable results. Preliminary experiment results: Wire type/diameter         Resistance (W) Copper 0.2mm         1.8 W constantan 0.2mm         9.1 W Constantan 0.45mm         5 W Constantan 0.9mm         1.8 W Diagram: The things that I go out measure and adopt are the voltage running through the wire and the current. This leave alone allow me to calculate the resistance of the wire. To calculate the resistance of the wire I will divide the voltage (V) by the current (I), which will give me the resistance in ohms (W). Equipment: The equipment that I will use is: -         power pack -         ammeter -         voltmeter -         30 SWG (diameter) constantan wire -         1 metre ruler -         leads -         crocodile clips Me thod: This is on the flock what I will do! : 1) ... If you want to get a full essay, order it on our website: OrderCustomPaper.com
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