This was because I could plot a graph and show the general trend. Registration form – asian pacific association for study of the liver. Once you know the resistivity of a conductor and its dimensions you will always be able to predict its resistance. Resistivity Constantan Wire Coursework The abstract of an article. If the wire curls onto itself and is touching at any point then this will affect the results as it will shorten the length of the wire the current must travel through. I really appreciate the info you have logged into this. Thanks, I needed a secondary data source for my controlled assessment.
Set the power supply to 1V. To measure the resistivity of constantan Physics Homework Help and To The next part of the experiment is to find the mean diameter, d in metres. Therefore the length will. I will make sure to site it and give you full credit! Views Read View source View history. Comments are not for promoting your articles or other sites.
Introduction In this article I will investigate what affects the resistance of a wire. Therefore the length will. Privacy is vital to us. An Experiment to Determine the Affect of varying Temperature on: The Resistance R is the resistance wire constantan nichrorome that you will be trying to calculate.
Physics coursework- Investigating the resistance of a wire. – GCSE Science – Marked by
Set up the apparatus as shown in fig. Record the readings on the ammeter and voltmeter for 8 different lengths.
Click to learn more https: 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.
First, I will collect the apparatus I need and set it up as shown in Diagram 1, below. Glad to hear it, Lucy. I will try to make this investigation as accurate as possible. I will repeat this method every 5cm until I get up to cm, taking three readings from both the voltmeter and ammeter each time to ensure accuracy.
The resistivity of Constantan Paper
Resistivity Constantan Wire Coursework – ginomescoli. The current nbsp; To measure the resistivity of constantan Physics Homework Help. I will also ensure that the wire does not heat up too much by confirming that I do not set the voltage too high on the power pack and by maintaining the same the voltage for every reading. Other product and company names shown may be trademarks of their respective owners.
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Thanks a lot, this really helped me with my physics lab report. Google provides ad serving technology and runs an ad network. Add this document to saved.
We will write a custom paper sample on The resistivity of Constantan specifically for you. 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. I will switch off the power pack, move the crocodile clip that was at 5cm up to 10cm, and switch on the power pack. In addition, I will make sure I turn the power pack off after each reading.
The resistance of a given wire can be calculated using the following equation: Drag one of the wires to the right gap of the metre bridge. Sorry, but downloading is forbidden on this website. Set the power supply to 1V.
Experiment to determine 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. Non-consent will result in ComScore only processing obfuscated personal data. ComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. No data is shared with Facebook unless you engage with this feature.
We partner with Say Media to deliver ad campaigns on our sites. The other constabtan included in this experiment are temperature, thickness of wire and density of wire.