To provide a better website experience, owlcation. Search Browse Essays; Join now! Constantan is a Nickel-Copper based alloy wire that has a high resistivity and is mainly used for thermocouples and electrical resistance heating. Best of luck with your future tests and exams. This stuff has greatly helped me to finish my physics assignment. This had really helped me with my Year 9 work.
Physics Control Assessment Calculation of resistivity of Constantan wire by different length experiment and by changing only the area of the Constantan wire. In addition, I will make sure I turn the power pack off after each reading. The resistivity of Constantan. Sep 14, The Resistance R is the resistance wire constantan nichrorome that you will be trying to calculate. Theory suggests that the resistance of a wire is found with this formula:
There are no anomalous results that I would consider to be far resistamce from the line of best fit. Thanks a lot, this really helped me with my physics lab report. Navigation menu Personal tools Log in Request account.
Measuring the Resistivity of a Wire This can be constantan wire sometimes known as eureka wire or nichrome wire, usually swg.
L Length of wire. In this experiment I predict that the longer the length of wire the greater the resistance. No data is constsntan with Facebook unless you engage with this feature.
Experiment To Measure The Resistivity Of A Wire
Constantan is a Nickel-Copper based alloy wire that has a high resistivity and is mainly used for thermocouples and electrical resistance heating. Ensuring Accuracy To ensure accuracy I will record the voltage and the current three times every 5cm and take the average reading. In this experiment we will be investigating how changing the length of a piece of Constantan wire will affect the resistance.
This limits the current through the wire in order to reduce any heating effect which may change the resistivity. In my main investigation I will see resistanfe this observation applies to my results.
Resistivity Of Constantan Wire Coursework – 734197
Using the same piece of wire throughout the experiment meant its temperature rose slightly over time, which may have affected my results. Results Below is a table of my results Table 3. In this experiment you will measure the resistivity of a sample of metal wire.
A no-frills guide to the practical where you deduce the resistivity of constantan wire. Below is a table illustrating the effect of changing the variables see Table 2: The current nbsp; To measure the resistivity of constantan Physics Homework Help.
An Investigation Into the Resistance of a Wire – GCSE Physics Coursework
Hi there, would you like to get such a paper? The variables I will courseworm will be the type of wire resistivity and the cross-sectional area of the wire.
The current details we ccoursework are V B Rewinds: Variables There are different variables that can be changed in this experiment; these are the independent variable. Postage and packing are also very reasonable – Their details are as follows: Comments are or for promoting your articles or other sites. An investigation into the resistance of a wire. Anyway, for those who don’t know, the resistivity. A wire 39;s resistance depends on four main factors: There are a few data points that are farther away from the line of best fit than the others, but they are still consistent with the general trend.
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The resistance of a given wire can be calculated using the following equation: Prediction I predict that the longer the wire, the larger the resistance. Introduction In this article I will investigate what affects the resistance of a wire. I could also consider using different cross-sectional areas of wires or even change the temperature of the wires deliberately and see how manipulating these variables affect the resistance of the wire.
It is also important that the wire is not handled while in use in the experiment as it may heat up. Questions must be on-topic, written with proper grammar usage, and understandable to a wide audience.
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.