The dependant variable will be the resistance because it will change only due to the length of wire. This is because they all have only one electron on the outer shell. Today sixty seven years after we said never genocide strikes again. We knew it was going on and we did nothing about it. Resistance is the results of energy loss and heat. * I then moved the crocodile clips to 60 cm so this length of wire could be measured. * I did not use power packs, whereas 1.5V of batteries were used. Many say that anyone who believes that texting Again,... ...How the Length of a Wire Affects Its Resistance combined with the texting, Texting combined with the camera, camera This also happens across a length of wire, which means therefore, that electricity is conducted. * Thirdly, the type of wire must be kept the same throughout the investigation so that the results will not be affected with the change of type of wire. I predict that different wires have different resistances. Would you like to get a custom essay? As in the preliminary experiment, different wires have different resistances but also the length of the wire will affect its resistance. Constantan 0.45mm 5 W * I then moved the crocodile clips to 10 cm so this length of wire could be measured. This first report in Physics will show the investigation of how the length of a wire affects its resistance. Whereas when there is less wire, there are fewer electrons to collide with each other, or particles of the copper or any impurities in the copper. This means that resistance takes a greater distance to stop the flow rate and that resistance overall is lessened. Aim Of The Investigation: Aim: What is going on, why, it just all seems like calculus to me. Diagram: By changing the variable of the wire, this will enable to see whether resistance is affected, whether it increases or decreases. There are factors which can affect how accurate our expriment is come on four levels. As the sliding contact moves, it varies the length of wire in the circuit. This is because the current will have more wire to pass through so the resistance will be high, whereas when there is less wire, the current can flow through easier, having a lower resistance. There are four main factors affecting resistance: * As temperature increases, the resistance of a wire increases. In a short tube, there are less atoms which means there are less to deflect the electron any more speeding the speed up. It is important that the voltmeter is set up in parallel and the ammeter in series. A longer wire requires more width and should be made of a material that is highly conductive to cut down on resistance. This is, as the length of wires increases, so does the resistance also increases, due to more electrons colliding with each other. INTRODUCTION * Be aware of the hot wire as fingers or hands may be burned. From analysing my graph, I can clearly see as the dependent variable increases the independent variable also increases. As I predicted that as the length of wire increases, the resistance will also increase. This report on resistance should be easy to get through but the difficult area in my opinion will be to get the results accurately and displaying the different findings. I will be using constantan wire starting of with 1m length and then decreasing it by 0.10m intervals down to 0.20m long. From my prediction, my graph and tables support my prediction. * The type of material also affects resistance, as different wires will have different resistances. Modern texting into communication apparatuses, such as So in order to calculate resistance the formula is rearranged as below: Resistance (Ohms) = Potential Difference (Volts) / Current (Amps). From evaluating my evidence, I have come to a conclusion that the length of wire does affect the resistance. Constantan 0.9mm 1.8 W I personally think it’s a political thing, and just the fact that we don’t care. I could have also tested out different wire such as nickel chrome, Constantine as in the preliminary results to find out different resistances of different wires. a continuous loop has been made connecting the negative end of an electrical source to the positive) it creates a path for electrons to pass through. * Ammeter PotentialDifference I just cannot wrap my mind around it. I found that the resistance increased 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 experiment using a copper wire because I would not really be able to compare the results. * As cross-sectional area increases, the resistance decreases. The amount and number of these free electrons depend entirely on the more material, meaning that the more free electrons there are, the better the conductor. * Crocodile... ...How does the length of a wire affect its resistance? Many lives could of ben saved. I think that when there is more length of wire, the resistance will be high in comparison to when there is less wire, the resistance will be much smaller. I could have also changed and varied the width of the wire, as I have already found out that length of wire does affect resistance and whether the width also affects it. Fact Check: What Power Does the President Really Have Over State Governors?