This website uses cookies As a user in the EEA, your approval is needed on a few things. The metal is full of “free” electrons that do not stick to any particular atom; rather, they fill the space between the atoms. OK doing some physics coursework at the moment where I have to measure the resistivity of Constantan. No data is shared unless you engage with this feature. Preliminary Investigation Below are my results from the preliminary experiment see Table 1. The resistivity of Constantan Paper.

However, due to my line of enquiry, I will only change the length of the wire. They are available 24 hours each day, 7 days per week, through email, online chat or by mobile. Also, the apparatus I had use of at school would not be suitable if I were to keep increasing the length of the wire; e. How about make it original? Therefore the length will. This is feature allows you to search the site.

If you contact us after hours, we’ll get back to you in 24 hours or less. Next, I will set the power pack on the lowest voltage possible to ensure that the current passing through the circuit isn’t too high which could potentially affect the results because the wire would get too hot.

However, I made sure that the wire remained straight throughout the experiment. Experiment to determine the resistance of a wire. This had really helped me with my Year 9 work. To provide a better website experience, owlcation.

## Resistivity Of Constantan Wire Coursework – 734197

It is also important that the wire is not handled while in use in the experiment as it may heat up. This stuff has greatly helped me to finish my physics assignment.

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Constantan is a Nickel-Copper based alloy wire that has a high resistivity and is mainly used for thermocouples and electrical resistance heating. It was noted that all the experimenters present found they calculated a lower value for the 30 S. This was really helpful for my controlled assessment. rexistance

I will also control, using the power pack, how many volts pass through the wire. Mechanical Properties; Surface resistivity: The equipment used was limited as to how accurate the readings could be with the accuracy being i?? Glad I could help! Overall, my results are very consistent with my predictions.

The following equation can be used to calculate the resistance of a wire: Leave your email and we will send you an example after 24 hours Extended experimental investigation Electricity — QCAA imply not associated with the experiment were kept away A Risk Assessment was No wires less than 20 cm in length were used. A resistance wire AB of uniform cross section, usually one meter in length, constangan mounted on a board with auxiliary components neces nbsp; Virtual Resistivity of constantan experiment — Virtual Science Ltd allows the user to measure the resistivity of constantan.

Set the power supply to 1V. Just remember to keep on munching chicken like me. Because constantan has a higher resistivity than copper, AS Physics Coursework – Resistivity in a wire. So I can find the Resisitivity condtantan Constantan.

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# Experiment To Measure The Resistivity Of A Wire

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 resisyance. Using the rheostat alter the number of volts running through the circuit until approximately 3 amps is reached.

This page was last edited on 14 Septemberat Unless you are signed in to a HubPages account, all personally identifiable information is anonymized. The Resistance R is the resistance wire constantan nichrorome that you will be trying to calculate.

## How the length of constantan wire affects the ressistance in a electrical circuit

This may have affected the results and could account for why the graph for the 34 S. If this is correct, the graph should show a positive correlation. You can use this to streamline signing up for, or signing in to your Hubpages account. Stretch the wire enough to remove any kinks or 39;slack 39; in the wire.

Class practical A simple investigation of the factors affecting the resistance of a wire. The graph for the 30 S.