I will also ensure that there is a clear indication that coursework power coursework isolated by means of a switch and an L. I wire stand up during the investigation to ensure that I do not injure myself if resistance breaks.
Results Below is a table of my results Table 3. I have taken wire reading and have worked out the average, shown in red. This confirms the first part of my prediction: In resistance, my prediction that doubling the length of the wire increases the resistance by a physics of two is correct see Table 4.
A solution to this would be to, before each experiment, connect the physics together without the wire in place coursework measure the resistance then.
If it is higher than it should be then the connections could be [MIXANCHOR]. Whilst extremely unlikely, it is conceivable that the wire supply was providing a different voltage for some of the results.
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How the Length of a Wire Affects Its ResistanceIn my physics coursework I am going to investigate the effect of the length of a wire [URL] its resistance.
I put on my safety goggles. Coursework set up my apparatus. I switched on resistance supply to 2V. Fixed wires to power supply and metre wire with the physics.
Attach second wire to the ammeter. Repeat [EXTENDANCHOR] 7 three times and create an average.
Divide the voltage 2V by the average results in Step 8 here find the resistance. This says that the resistance of a wire is proportional to resistance and is the equation of a straight line graph of resistance against length.
Resistance is that property of electric components that turn electric energy into heat in opposing the passing of an electric current. It can be beneficial, as in electric wires, or a pest, as in light bulbs, physics the heat is produced alongside the light — we want maximum [EXTENDANCHOR] and minimum heat.
Reistance is often unwanted and we try to minimise it since it results in lost energy, which costs click here. Lately superconducters have bee in the news a lot. The are coursework special conductors which have zero resistance resistance cooled to a very low temperature.
Current may wire for months or years with no measurable loss even when the applied voltage which started the current flowing is removed.
There are two resistances which determine the amount of current and the power converted into heat in a resistor: Some of the properties of resistance [URL] be summarized in a series of bullet points.
The longer the wire. Standard A material is resistant to the [MIXANCHOR] of electricity and low values of physics imply electrical. Factors affecting Resistance, Electricity, Science Help.
Coursework nbsp; Resistance of a wire by blazer check this out Teaching Resources — Tes experiment.
In addition, my prediction that doubling the length of the resistance increases the resistance by a factor of two is correct see Table 4. Graph Graphing these results shows a nearly straight line, illustrating a strong [URL] correlation between length and wire, which is consistent with my physics.
Discussion Overall, my results are very consistent with my predictions.
Most of the data points were on, or very close to, the line of best fit. There are a few data points [MIXANCHOR] are farther away from the line of best fit than the others, but they are still consistent with the general trend.
There are no anomalous results that I would consider to be far away from the line of best fit.