Below is an essay on resistance of a wire from anti essays, your source for research papers, essays, and term paper examples aim: to investigate how changing the length of the wire affects its resistance. Resistance of a wire this essay resistance of a wire and other 64,000+ term papers, college essay examples and free essays are available now on reviewessayscom autor: review • december 11, 2010 • essay • 1,811 words (8 pages) • 1,253 views. I think that the reason for the thinner wire having such a high resistance is based on the make up of the wire the ions in the wire are a lot more tightly packed so there for it is harder for a larger flow of electrons to pass through the wire. Resistance of a wire coursework essay the problem with using resistance as a measurement is that it depends not only on the material out of which the wire is made, but also the geometry of the wire if we were to increase the length of wire, for example, the measured resistance would increase.
Read this science essay and over 88,000 other research documents resistance of a wire investigation preliminary investigation: aim: to investigate the main problems with my main experiment and to see how to resolve these. The length because the wire is thinner than the rest of the wires the electrons wood have more trouble going through for if the wire had the same width there would be no difference, and the longer it is the harder it will be for them so the resistance will go up 2. Factors affecting the resistance of wire aim: to investigate the factors that affect the resistance in a conductor the main factors that affect the resistance in a conductor are: length temperature cross sectional area material magnetism the factor that we are going to change is the cross sectional area.
The aim of this experiment is to investigate the ways in which thickness (or rather the cross sectional area) affects the resistance of a wire, how it affects it, and why this happens. In the case of the wire, resistivity is defined as the resistance in the wire, multiplied by the cross-sectional area of the wire, divided by the length of the wire the units associated with resistivity are thus ohmm (ohm - meters. Due to this, the resistance increases this is shown in the diagram below the second reason is that there are more ions in longer wire than in shorter wire, which will therefore slow down the electrons flowing.
Resistance of a wire - sample essay an electrical circuit was mounted using a power supply, an ammeter, a voltmeter and a resistor (wire) the voltage and current were worked out for different lengths of the wire using the ammeter (for the current) and the voltmeter (for the voltage. These results show that as the length of the wire increases, the resistance increases, as well furthermore, if you double the length of the wire, the resistance is roughly doubled for example, when the length of the wire is 20cm the resistance is 314 ohms when the length of the wire is 40cm the resistance is 618 ohms, which is roughly double. Published: mon, 5 dec 2016 electrical currents are routinely harnessed and transmitted via interconnected wires the purpose of this research is to identify factors commonly responsible for affecting the resistance of current, or flow of electricity, across a wire in an electrical circuit.
This would determine whether a slight change in the wire's temperature, as little as 0 5 of a degrees celsius, would cause a significant change in the current passing through it, and in turn, causing the resistance to be inaccurate and misleading. Resistance of a wire essays: over 180,000 resistance of a wire essays, resistance of a wire term papers, resistance of a wire research paper, book reports 184 990 essays, term and research papers available for unlimited access. How the resistance of a wire is affected by its length this investigation will determine how changing the length of the wire, when passing an electrical current through it, will effect its resistance.
Resistance in a wire coursework in this investigation we are trying to look for resistance in a piece of wire, and how the length of a wire can increase or decrease the resistance. To investigate the resistance of a wire using the equation v=ir aim to investigate the resistance of a wire using the equation v=ir prediction i predict that resistance will be directly proportional to the length of the wire. It is this resistance which hinders the water flow and reduces both its flow rate and its drift speed like the resistance to water flow, the total amount of resistance to charge flow within a wire of an electric circuit is effected by some clearly identifiable variables.
- investigating the resistance of a wire we have been given the task to investigate the resistance of different wires, i am firstly going to start by explaining what resistance is, why it occurs, what causes it, and how it can be used to our advantages. Then take the 30cm ruler with mm measurements and make these marks on the planks of wood 100% accurate distances ensure that the wire is tight and will not sag pre-experiment - giving extra accuracy compared to it not being a tight wire. Physics investigation resistance of wire essay while the free essays can give you inspiration for writing, they cannot be used 'as is' because they will not meet your assignment's requirements. Resistance is a measure of how hard it is to move the electrons through the wire the length of the wire also makes a difference in the resistance because, if the length of the wire is increased then the resistance will also increase as the, electrons will have a longer distance to travel and so more collisions will occur.