Selection of reels of Eureka wire also known as Constantan or Contra of different gauges, e. This experiment can be used as a more open-ended investigation. We see that if the area of the wire doubles, so does the number of possible routes for the current to flow down, therefore the energy is twice as spread out, so resistance might halve.
The type of material will affect the amount of free electrons that are able to flow through the wire. This experiment can be used as a more open-ended investigation. Due to this increased space between the atoms there should be less collisions. 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.
We can write a custom essay According to Your Specific Requirements. Check out the page and read a little further However, this would then lose its value as an open investigation.
Have not found what you were looking for? I will the set it out in a complete circuit with the voltmeter running parallel without no gaps and keeping the power off, as shown in the diagram. I will then turn the power pack on and record what voltmeter and ammeter readings.
I will stand up during the investigation to ensure that I do not injure myself if something breaks.
Selection of reels of different wires e. I will then on the power pack, allowing the electricity to flow through the circuit, where I will then be able to collect the volts from the voltmeter and the amps in the ammeter.
According to Kazoleas an individual may resist persuasion because of the ability to generate or construct counterarguments when they think about a message inconsistent with the existence of the attitude. Note the reading on the ammeter. To make sure the experiment is as safe as possible we need take a few safety precautions.
Increasing the number of electrons experiencing the slope will mean more flow past a point in a second and so more charge passes a point in a second and more current flows.
I also predict the bigger the width the less the resistance in proportion to the size.
If short lengths of wire are used with relatively high currents and voltages, then significant electrical heating may also occur. I have taken three reading and have worked out the average, shown in red. For example, I could use different types of wire instead of using only nichrome.
Resistance is a measure of how hard it is to move the electrons through the wire. The resistance decreases by a large amount when it is heated.
They are products of the Earth's ever-changing face and lead to the movement of the world's tectonic plates. 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.Factors affecting the resistance of a wire Introduction: Resistance is a force, which opposes the flow of an electric current around a circuit.
Resistance is measured in Ohms. Resistance is measured in Ohms. Apr 19, · An investigation into the resistance of a wire. Free GCSE physics coursework essay. A wire's resistance depends on four main factors: Resistivity; Length of the wire; Cross-sectional area; Temperature of the wire; I will investigate how the length of the wire affects the resistance.
I have done a preliminary experiment to help me decide the Reviews: Investigate one or more factors affecting the resistance of metal wires area since I had decided that I would take ammeter readings at 10cm intervals of a length of 1m wire.
I would investigate the effect of cross-sectional area by comparing the different thicknesses of the wires at particular lengths. Resistance depends on the material the wire is made of. The more tightly an atom holds on to its outermost electrons the harder it will be to make a current flow.
The more tightly an atom holds on to its outermost electrons the harder it will be to make a current flow. PHYS-ABM #9: In this experiment, you will Collect potential difference and current data for a number of metal rods.
Determine the electrical resistance for each of the readings. Determine how length, cross-sectional area, and type of material affect the resistance of a metal rod.
The aim of this experiment is to investigate one factor that affect Different wires composed of different metals will have differing - Investigating Factors Affecting Resistance of a Wire Aim Investigate what factors affect the resistance of wire, however in this experiment I am going to monitor how the length of a wire affects the.Download