An experiment to measure wire resistance in relation to changing variables

Again, I will record the voltmeter and ammeter readings and turn off the power pack.

resistance of a wire lab report

The slope reveals that when the length of a wire is increase, the resistance would go up by an approximate measurement of 1. Here are some ways our essay examples library can help you with your assignment: Brainstorm a strong, interesting topic Learn what works and what doesn't from the reader's perspective.

It is like the flow of water through pipes etc. For example, gold has more free electrons than iron and, as a result, it is a better conductor 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.

This will reduce the chance of false readings and will cancel out any anomalous results.

How does wire thickness affect resistance

Using the same piece of wire throughout the experiment meant its temperature rose slightly over time, which may have affected my results. Remember that resistance occurs when the electrons travelling along the wire collide with the Ions of the wire. Essays may be lightly modified for readability or to protect the anonymity of contributors, but we do not edit essay examples prior to publication. The variables I will control will be the type of wire resistivity and the cross-sectional area of the wire. I will also ensure that there is a clear indication that the power is isolated by means of a switch and an L. I will try to make this investigation as accurate as possible. For instance a 10cm wire has 5 atoms, a 20cm wire has 10 atoms. I will switch off the power pack, move the crocodile clip that was at 5cm up to 10cm, and switch on the power pack. Did you find something inaccurate, misleading, abusive, or otherwise problematic in this essay example? In conclusion, the experiment was a successful investigation that successfully answers the research question of how basically changing the length of a wire specially a nichrome wire with a diameter of 0. For more information on choosing credible sources for your paper, check out this blog post. This was proven and supported by the trend-line in the graph which basically shows an positive correlation in the increase in resistance in the same rate as the independent variable increases, which is just as the hypothesis predicted. Discussion Overall, my results are very consistent with my predictions.

We'll take a look right away. The investigation has concluded that there is a clear relationship between the length and the resistance of a wire, and that the former does in fact affect the latter.

An experiment to measure wire resistance in relation to changing variables

There are no anomalous results that I would consider to be far away from the line of best fit. Again, I will record the voltmeter and ammeter readings and turn off the power pack. The example essays in Kibin's library were written by real students for real classes. To support my prediction and conclusion, I could do further experiments. Wire Conclusion From the graph, you can see that as the length of the wire increases, the resistance increases. This would have prevented the area of the wire from remaining constant and would have affected my results. In my hypothesis, I predicted that the effect of changing the wire length will be that as the length increases, the resistance on the wire will increase. The number of free electrons depends on the material and more free electrons means a better conductor, i. I have taken three reading and have worked out the average, shown in red. This was proven and supported by the trend-line in the graph which basically shows an positive correlation in the increase in resistance in the same rate as the independent variable increases, which is just as the hypothesis predicted.

In addition, my prediction that doubling the length of the wire increases the resistance by a factor of two is correct see Table 4.

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Lab Report Explained: Length and Electrical Resistance of a Wire