This can be clearly said for both wires tested. I will measure the resistance of 8 different lengths of nickrome wire using a tape measure. To supply the potential difference. The multimeter is better to use because of the larger currents and because the readings are given to 2 decimal places.
I shall then proceed to connect a 50 mm length of nickel-chrome wire, which shall be measured using a tape measure, he output from the ammeter.
My aim is to find out which factors affect the resistance of wire and how they affect them. Use the diameters 0. However, using new pieces of wire each time would have been too impractical and time-consuming in the context of this lesson.
Discussion Overall, my results are very consistent with my predictions. This confirms the first part of my prediction: The free electrons are given energy and as a result move and collide with neighbouring free electrons.
The longer the wire, the higher the resistance. The only one that does not is the point at 90cm, which was exactly at the point that the black mark mentioned previously was found to be.
As their motion becomes more erratic they are more likely to get in the way and disrupt the flow Resistance of a wire coursework essays the electrons and therefore increase the resistance.
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. There are possible sources of error that might have led to inconsistent results, such as a kink in the wire.
Once I have the full sets of results I shall plot them in a graph and say what I learned. We are committed to helping students with Physics coursework writing and rewriting with the most reasonable terms.
The overall resistance of the two wires seems to differ considerably. You will then have to find some information which will help you to prove your GCSE coursework resistance of a wire and or Resistance of a wire coursework hypothesis and statements.
Regardless of your deadline, budget, specifications, or academic level, we can provide immediate help for your physics resistance GCSE coursework essay, term paper, book report, research paper, dissertation, thesis, or university coursework. I will try to make this investigation as accurate as possible.
In my experiment I will be using wire, because it has a high resistance. If the electrons have to travel further in a long wire, therefore more energy will be needed. All materials have a slight resistance to electricity factors affecting the resistance are: Furthermore, the resistance of a metal increases as its temperature increases.
Overall, I think my method was sufficient to obtain reliable results. I shall then proceed to connect a 50 mm length of nickel-chrome wire, which shall be measured using a tape measure, he output from the ammeter.
I predict that as the length of the wire increase so does the resistance.
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. In addition, I will make sure I turn the power pack off after each reading.
The solution to this is to measure the lengths more carefully and ensure that the wire is pulled tight against the metre rule. To measure the current. Energy has to be used to push current through a wire. A solution to this would be to, before each experiment, connect the connections together without the wire in place and measure the resistance then.
Having ompleted two sets of results for one wire, it was noticed that these was a large black mark towards one end of the wire, where it appeared that it had been melted to some degree at some point.
Take the reading from the ammeter recording both the current and the voltage. The current has to go through a circuit, which contains resistance so if you increase that push you also increase the flow of the current. This did not, in this case, cause a big problem as the same wire was used for each set of results so it is known that the results for each wire are correct.
Resistance Coursework Planning: Aim Investigate how the length of a wire affects the current and resistance of a wire. Variables The variables that could change Variables The variables that could change.
GCSE Physics Coursework - Resistance of a WireAim: To investigate how the resistance of a wire is affected by the length of the hazemagmaroc.com is resistance?Electricity is conducted through a conductor, in this case wire, by means of free electrons.
Resistance of a wire coursework - Sample Essay For example, gold has more free electrons than iron and, as a result, it is a better conductor. The free electrons are given energy and as a result move and collide with neighbouring free electrons. Resistance of a wire coursework Essays: OverResistance of a wire coursework Essays, Resistance of a wire coursework Term Papers, Resistance of a wire coursework Research Paper, Book Reports.
ESSAYS, term and research papers available for UNLIMITED access. The Ohms law calculates the resistance of a wire by: Resistance (R) = potential difference across the wire (V) Current through the wire (I) There is a resistance in a wire because the electrons bump in to each other in the nichrome wire.
Theory suggests that the resistance of a wire is found with this formula: R=? L/A R = Resistance? = Resistivity of wire L = length of wire A = cross-sectional area I will now perform an investigation to confirm the legitimacy of this formula and confirm a value for?
in a Nichrome wire.Resistance of a wire coursework essays