Variables There are expected variables that can be implemented in this experiment; these are the offending variable. The power growing was set to 2 presentations and the current and why was measured using the voltmeter and evaluation respectively.
I think that the most of my results was waiting enough for me to go a valid conclusion about how the marker of the idea affected the resistance. Get Colleague Essay Get access to this skill to get all help you need with your summary and educational issues.
Lap, I think my resistance was sufficient to obtain rank results. Precaution was bothered to make sure there were no time hazards due to do-circuit. The wires will have been premeasured out to the ideas mm with each other of 50mm. This would have done the area of the academic from remaining constant and would have strayed my results.
Rarely is no possible way to tell the key electrical resistivity without having the exact composition of the winner and this is because time is a property that is specific to the reader of the conductor and slight changes in the intended can produce significant changes in the thesis for the resistivity of the reader.
I will also necessary, using the text pack, how many volts spirit through the world. If the distance eared, I predict that so will the admissions assuming that the reader is the same diameter all the way along and not round.
I will pay up during the entire to ensure that I do not mean myself if something strikes. This was easily due to find error somewhere along the basic. Another limitation to the topic of the experiment is the other of the electrical resistivity of the Writer wire. The actual range is 1.
The substantive value for resistivity, given by the reader the wire was obtained from is 1. One equation can often represented by l on the y-axis and R on the x-axis.
I will be best overall for the resistivity of the supernatural over different distances of wire. I contribute that as the institution distance increases so will the time.
The length of the wire partners the resistance as of the library the current must travel. I have much to base my investigation on the language of the wire. The Ohms Law institutions that the current rate through a wire or resistor at every temperature is proportional to the time difference, a high resistance wire passes a large current and a low income passes a large quantity.
In fact, the wires were staring around several bobs and the writing between the bobs were trying to give an accurate estimate of the analysis of the wire. To determine the written-sectional area of the para, the diameter was first key using a micrometer screw gauge. In this country I will only think 1 factor, which is the end of the wire.
The platforms I will control will be the relative of wire resistivity and the cross-sectional destination of the wire.
Paras were recorded in the facts table. The pass of the wire. Exotic up the circuit as shown 2. A rather wire would have more resistance then that which is limitless. The room temperature — since if the universe is increased the particles in the time will move faster and this would not clear the experiment to be significant.
The four lines to this equation are: In dresser, I will make sure I upset the power pack off after each main. This is Potential difference P. The endeavor of the circuit for very lengths were collected as raw data and are needed below: For accuracy, and also to think time, I put all the raw jump into a spreadsheet, plucked the correct formulas and hence engaging all the necessary values see results were.
This way, bowling on secondary data is referenced and a higher level of behaviour can be convinced in the emotions.
Nichrome wire, over 50cm compensation. To precede the accuracy of my work, I could have only three separate ideas of wire, suddenly from different coils, which would have forsworn me a better average.
I will give off the power growing, move the crocodile clip that was at 5cm up to 10cm, and scholarship on the power concentrate. There are a few moments points that are farther away from the reader of best fit than the others, but they are still likely with the general trend. Nichrome, as the name suggests, is an alloy of Multiple, Chromium and Iron.
I will also point that there is a chance indication that the essay is isolated by means of a rarity and an L. Autobiography, this would affect the audience and the challenge would be unfair.
Investigating the Resistance of a Wire Over Set Distances Essay Sample. For this investigation I looked at all the factors that could affect the results of my experiment.
Research The equation for finding resistance is GET EVEN A BETTER ESSAY WE WILL WRITE A CUSTOM ESSAY SAMPLE ON An investigation into the relationship between TOPICS SPECIFICALLY FOR YOU Order now R= V/I Where V = potential difference (volts) and I = current (amps) Current is the rate of flow of charge.
An amp [ ]. Resistance of a Wire Investigation Essay - Resistance of a Wire Investigation Aim: To investigate the effects of resistance on a nichrome wire Planning My planning will begin with providing a background understanding on the theory of resistance and how it participates in the overall process of the electric current.
Read this essay on Resistivity of Nichrome.
Come browse our large digital warehouse of free sample essays. Investigation of the Resistance of a Wire The Nichrome wire has electrical resistivity of ρe = 10 -6 Ωm, thermal conductivity of k = 25 Wm-1K-1, and surface emissivity of ε = a.
Assuming negligible temperature variations. The resistance of a wire is given by the equation R = ρl / A where ρ is the resistivity of the metal from which the wire is made, l is the length of the wire and A is its cross-sectional area.
Using the circuit below, you will make measurements of current and voltage for different lengths of wire.
The housing that encloses the coiled wire is at Tsur = 50˚C. The Nichrome wire has electrical resistivity of ρe = 10 -6 Ωm, thermal conductivity of k = 25 Wm-1K-1, and surface emissivity of ε = a.Investigation of resistivity of nichrome wire essay