Physics coursework theory resistance of

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resistance practical

Prediction Hypothesis : I predict that the longer the wire the higher the resistance, and the shorter the wire the lower the resistance. Again, I will record the voltmeter and ammeter readings and turn off the power pack.

resistance physics

For example, I could use different types of wire instead of using only nichrome. This was because I could plot a graph and show the general trend.

Resistance physics example

Most of the data points were on, or very close to, the line of best fit. To support my prediction and conclusion, I could do further experiments. Among other things you will have to create an outline for your coursework. Using the same piece of wire throughout the experiment meant its temperature rose slightly over time, which may have affected my results. Below is a table illustrating the effect of changing the variables see Table 2 : Table 2: Variables Safety I will ensure experimental safety by confirming that all the wires are connected properly and that none of the insulation on the wires is worn. I have taken three reading and have worked out the average, shown in red. We will provide you finest custom-written GCSE physics coursework on any topic of your choice. Results Below is a table of my results Table 3. Theory What is resistance. However, I made sure that the wire remained straight throughout the experiment. Overall, I think my method was sufficient to obtain reliable results. However, I think that unless I had specialist equipment the results would be distorted because the wire would eventually get very hot. I will also control, using the power pack, how many volts pass through the wire.

I will also control, using the power pack, how many volts pass through the wire. However, using new pieces of wire each time would have been too impractical and time-consuming in the context of this lesson.

Resistance of a wire length

We will provide you finest custom-written GCSE physics coursework on any topic of your choice. However, due to my line of enquiry, I will only change the length of the wire. For example, I could use different types of wire instead of using only nichrome. We provide a 24hr customer service to cater to all your physics coursework requirements. In addition, my prediction that doubling the length of the wire increases the resistance by a factor of two is correct see Table 4. The variables I will control will be the type of wire resistivity and the cross-sectional area of the wire. I think that the range of my results was sufficient enough for me to draw a valid conclusion about how the length of the wire affected the resistance.

I will try to make this investigation as accurate as possible. To support my prediction and conclusion, I could do further experiments.

Resistance and resistivity

I could have considered using a new piece of wire each time in order to regulate the temperature more stringently. To support my prediction and conclusion, I could do further experiments. We are committed to helping students with Physics coursework writing and rewriting with the most reasonable terms. I have taken three reading and have worked out the average, shown in red. For years our physics coursework experts have inspired students worldwide by providing the most extensive, lowest-priced service for physics coursework writing and research. You will have not only to create the parts and sections of your GCSE coursework resistance of a wire and or Resistance of a wire courseworkbut also to describe each part with the help of some key words. Most of the data points were on, or very close to, the line of best fit. I will then turn the power pack on and record what voltmeter and ammeter readings. Graph Graphing these results shows a nearly straight line, illustrating a strong positive correlation between length and resistance, which is consistent with my prediction. Diagram 1: Apparatus Ensuring Accuracy To ensure accuracy I will record the voltage and the current three times every 5cm and take the average reading. Using the same piece of wire throughout the experiment meant its temperature rose slightly over time, which may have affected my results. 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. 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.
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Physics Coursework Theory