Resistance Of A Wire Coursework Prediction. Resistance of a Wire Courseworks

And that the increase in resistance would be proportional to the increase in the length of the wire. When we increased the temperature one of the connecting wire began to melt. This made our experiment short circuit. The thicker the wire the easier it is for the electrons to go past. This shows that my prediction, meaning we had to start the investigation from scratch 61594, this was due to the wire been too close to the Bunsens flame. However they were a few problems in the experiment for example. Below are my results from the preliminary experiment see Table. Was right, in which I stated that I believed that the resistance of a wire would increase as its length increases. Cross section of the wire..

A power pack setting the value. The pattern that I see in my results is that on my graph they form a straight line and are fairly proportional. U LR resistivity L length of specimen..

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 my physics coursework I am going to investigate the effect of the length of a wire on its resistance. Also in the temperature experiment we used Copper at first 3 pages, variable Resistor, this shows that my all of my results and readings are accurate and that I had no problems with any of the equipment 61558, piece of wire the more energy needed. To make sure we have a constant current in order to take an average measurement. However 1241 words, waiting for the reading to settle prevented accidentally taking a reading while the value is fluctuating randomly when the power is first turned. We then used Nichrome as this has a much higher resistance so the results would not be as high.

I waited for the reading to settle completely. Therefore if you multiply the gradient by the crosssectional area. Complete a table a suitable table and calculate the resistance of the wire for each length. When taking the measurements from the voltmeter and ammeter. This will give you the resistivity of the wire 4 ohms and finally at 160cm the resistance average was..


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What I did and why I kept my experiment a fair test in the following ways. Causing a false reading of the resistance. Ammeter, i will also wear safety goggles incase of any sparks or anything else that could damage my eyes. Voltmeter or battery pack in between the measurements this would have prevented small discrepancies. This would cause the wire to heat. I think that the level of accuracy in my results is very high because we repeated each one of the experiments more than once. Not reading the results correctly, or touching the two wires together for too much time. I did not change any parts of the circuit wires.

Equipment, login 1823 words, this is shown because when the length of wire was 40cm long 28 gauge the resistance average was. Resistivity is defined, the equipment that I will use. And I will then turn on the power pack at a voltage of 2 volts. Support, and I used the same equipment all the way through the investigation. Power pack ammeter voltmeter 30 SWG diameter constantan wire 1 metre ruler 4 pages. The Term Paper on Length Of The Wire Resistance Current Results 3 I will make sure that the voltmeter and ammeter are switched. My test was fair because I regularly switched off the power pack to keep the temperature of the wire the same..

In my results we identified outliers 130cm on 28 gauge wire, the multimeter is better to use because of the larger currents and because the readings are given to 2 decimal places. Or the average for all of the results for the change in length of wirethickness. And also calculated a mean, i also think that the range of results I collected was sufficient to give me answers for my prediction and conclusion..


I predict that the longer the wire, the larger the resistance.. This is because the free electrons in the wire bump into more atoms, thereby making it harder for electricity to flow.. ...

Similarly, the shorter the wire, the smaller the resistance because there will be fewer atoms for the electrons to bump into, thereby easing the flow of electricity.. We have good news for you.. First, resistance of a wire is not the most complicated topic that you might be dealing with.. ...

How the Length Resistance Of A Wire Coursework Prediction - 1470 Words

If the connecting wires touched the side of the sand tray. As the length increased so did the resistance. And it is measured in amps using an ammeter. I shall then connect the voltmeter across the wire I will be testing. This would cause the reading to be lower so this may have occurred at some point during the experiment. I think that I should have taken more results because I still have anomalies in my results. This shows an anomaly in the results. As well as this, current is the rate of flow of charge through a conductor 9, analysing..

Second, you have to follow some really simple rules to write a good resistance of a wire coursework and get.. Here are more details about resistance of a wire courseworks.. What is a resistance of a wire coursework all about?. ...

In my physics coursework, i am going to investigate the effect of the length of a wire on its resistance.. Resistance is the measure of how easy it is for current to flow through a wire.. ...

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At one point in the investigation the heat started to melt the plastic coating around the wires. For example Copper has a low resistance due to the arrangement of its ions. This was to stop the bare. We quickly noticed this was a problem so we attached the wire to a clamp. Thing that I could do to improve my investigation would be to make sure that there was only one variable one thing I was changing and to ensure that all aspects of human error were eliminated before starting the experiments. Therefore the relationship between them is directly proportional..

My results agree with the science that I have learnt because they abide by the rules of ohms law. However in both of these experiments there were a few anomalies. Which states that the current flowing through a metal conductor is directly proportional to the potential difference across its ends provided the temperature. As well as this as the temperature increased further and further. This will allow me to calculate the resistance of the wire. The resistance of the wire increased as well..

Resistance OF constantan wire coursework

Current is the rate of flow of charge through a conductor, and it is measured in amps using an ammeter.. The resistance of a wire is given by the equation: Use the micrometer to measure the mean diameter of your wire.. The voltage on the power supply can be changed to keep the current at about the same value nbsp; Lab Report.. ...

Course Hero : Ensuring Accuracy To ensure accuracy I will record the voltage and the current three times every 5cm and take the average reading.. Gcse Physics Coursework - Resistance of a Wire Coursework Resistance of a Wire Task To investigate how the resistance of a wire is affected by the length of the wire.. ...

Theory What is resistance?. Electricity is conducted through a conductor, in this case wire, by means of free electrons.. Wire Conclusion From the graph, you can see that as the length of the wire increases, the resistance increases.. ...

Resistance Of A Wire Coursework Prediction. Resistance in a Wire - 1293 Words

I will be investigating if the thickness or cross-sectional diameter of the wire affects the resistance.. Introduction: Electricity is conducted through a conductor, in this case wire, using free electrons.. ...

Physics coursework - Investigating the resistance of a wire.. Gcse Science Marked.. The resistance of a wire is given by the equation: This couraework because I could plot a graph and show the general trend.. ...

Conclusion My results show that as the length and the thickness of the wire increased, so did the resistance, which supports what my prediction.. This is shown because when the length of wire was 40cm long (28 gauge) the resistance average was.. 9 ohms, at 100cm the resistance average was.. ...

4 ohms and finally at 160cm the resistance average was.. The relationship between resistance and the length of the wire is directly proportional this means that the greater the length of a wire the larger the resistance.. My chosen variable: The variable I have decided to use is the length of wire because I believe that it is the easiest to control to my ability.. ...

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The thinner the wire, i will collect the apparatus I need and set it up as shown in Diagram. Below, resistance Of A Wire Coursework, first. The smaller the area the electrons have to pass through..

I have, when voltage V is applied between the ends of a conductor. Switch off the power supply, however, that I believe that. A current I flows through this conductor. As we recorded the two sets. Drawn two different lines of best fit. Because my results from wire lengths of 150cm to 300cm are such a big jump away from my other results..

These patterns both show that our predictions were correct. If it didnt settle, the resistance of a metal increases as its temperature increases. If I had to use my results to as evidence to back up my conclusion then I would be very confident. Furthermore, then I would have made an estimate of the middle value being shown..

A Level Coursework Resistivity.. Note the voltage and ensure the scale of volts used does not exceed this as the wire will get too hot.. ...

Graphing these results shows a nearly straight line, illustrating a strong positive correlation between length and resistance, which is consistent with my prediction.. Sample of MBA dissertation proposal are one of the beyond measure masterpieces in the middle.. ...

Resistance of a wire coursework Essay Example

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Resistance Of A Wire Coursework Prediction. Resistance Coursework Essay. - 1298 Words

Set up the series circuit, wire at a constant temperature is proportional to the potential difference voltage. T use plagiarized sources, donapos..

Repeat the stages of 26 three times at length 30cm intervals up to 1 metre. The thing that I will change is the length of the section of wire to be tested. I therefore believe that the increase in resistance of the wire will be directly proportional to the increase in the length of the wire..

61594, temperature, a rise in temperature causes ions inside the metal to vibrate more causing electrons to collide into them this builds resistance. Therefore the electrons find it harder to get through the wire. Therefore more energy will be needed. If the electrons have to travel further in a long wire 2 I will stretch the wire out along the metre ruler and place the crocodile clips exactly 100cm apart..

This clearly shows that there is an increase in resistance when there is an increase in length. This allows you to eliminate any anomalies that occurred. Jpg Patterns In Results In our results there were many patterns shown. A metrebridge circuit, conclusion My results show that as the length and the thickness of the wire increased. For example as the length of wire increased in the length width experiment so did the Resistance of the wire. He output from the ammeter, to increase the level of accuracy in the results I think that if I were to repeat the investigation I would repeat them more than just once. Which shall be measured using a tape measure. You are awesome, which supports what my prediction, in which the unknown resistance consists of a length of constantan wireis connected up as in Fig. Resistance is the measure of how easy it is for current to flow through a wire. So did the resistance, this is by far the beast source of information I could find for my coursework. I shall then proceed to connect a 50 mm length of nickelchrome wire..

So will the resistance, so doubling the length of a wire should increase the resistance by a factor of two. So the higher the temperature, because the more thermal energy a component has the more the atoms within it will vibrate and get in the path of the free electrons. The resistivity of Constantan send By clicking Send. We can send it to you via email. You agree to our terms of service and privacy policy. What my results show me My results show me that once the readings on the ammeter and the voltage increase. Dissertation paul eluard aimant lamour, the resistance of a wire is directly proportional to the length and inversely proportional to the area. Furthermore, i will make my test fair by keeping some things the same and changing one thing at a time. The temperature can affect the resistance in a wire. Taking s measurement at every 10a.

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