There are no anomalous results that I would consider to be far away from the line of best fit. If you contact us after hours, we’ll get back to you in 24 hours or less. I will investigate how the length of the wire affects the resistance. Must be of great help for those students who are doing physics. Coursework I will be using constantan wire between the length of eureka wire, and resistivity. Constantan was chosen as unlike most metals, its resistivity does not change when the temperature is raised so the results will not be affected by the wire heating up. Free GCSE physics coursework essay.
We will write a custom paper sample on The resistivity of Constantan specifically for you. Click to learn more https: This is because the free electrons in the wire bump into more atoms, thereby making it harder for electricity to flow. Set up the apparatus with the 34 SWG wire and repeat experiment. First, I will collect the apparatus I need and set it up as shown in Diagram 1, below.
resistivity constantan wire coursework
You can use this to streamline signing up for, or signing in to your Hubpages account. In this experimentI am going to find out the relationship between ResistivityResisistance, cross sectional area and length of the wirewhich in this case is Constantan.
Experiment to determine the resistance of a wire – TecHKnow Wiki
Graphing these results shows a nearly straight line, illustrating a strong positive correlation between length and resistance, which is consistent with my prediction. Sign in or sign up and post using a HubPages Network account. Results Below is a table of my results Table 3. The results will help me make predictions, as well.
Resistivity Of Constantan Wire Coursework – | Viver, Aprender
Note the voltage and ensure the scale of volts used does not exceed this as the wire will get too hot. This means that two pieces of wire made of the same metal and at room temperature should give the same result when calculating resistivity regardless of its length and cross-sectional area.
Therefore the length will. A metre-bridge circuit, in which the unknown resistance consists of a length of constantan wire, is connected. A metre-bridge circuit, in which the unknown resistance consists of a length of constantan wireis connected up as in Fig. Therefore the length will be an independent variable and all of the other variables we will try to keep the nbsp; Free constantan wire Essays and Papers — of a Constantan Wire is Affected by Its Length — Investigating how the Resistance of a Constantan Wire is Affected by Its Length Introduction: However, I think that unless I had specialist wirw the results would be distorted because the wire would eventually get very hot.
This may have affected the results and could account for why the graph for the 34 S. Plot a graph for each wire and calculate the resistivity of the constantan, both wires should give the same result. When voltage V is applied between the ends of a conductor, a current I lf through this conductor.
Experiment to determine the resistance of a wire
Best of luck with your future tests and exams. I will investigate how the length of the wire affects the resistance. How about receiving a customized one? In this experiment you will measure the resistivity of a sample of metal wire. Electrical resistivity and conductivity Constantan 4. Resistivity Constantan Wire Coursework The abstract of an article. I used some of the data for my physics homework so thanks for that. This confirms the first part of my prediction: I will repeat this method every wige until I get up to cm, taking three readings from both the voltmeter and ammeter each time to ensure accuracy.
A wire’s resistance depends on four main factors:. Set the power supply to 1V. Theory suggests that the resistance of a wire is found with this formula: Thanks, I needed a secondary data source for my controlled assessment.