A grade gcse physics experiment— investigation into the effect of parachute surface area in relation to its fall time updated on february 4, 2017 luno2012 more below is a table. 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 on its resistance resistance is the measure of how easy. Variables: in my experiment, i will be measuring how the resistance of the wire changes, so resistance is my dependant variable i will be able to calculate the resistance because i will.
In this experiment the resistance change in a wire will be investigated i will be investigating if the thickness or cross-sectional diameter of the wire affects the resistance variables. Using a copper wire, a standard 1 ω resistor, and a piece of bscco 2223 superconducting tape using liquid nitrogen as the refrigerant, students will measure electrical resistance over a. 1 the problem statement, all variables and given/known data an experiment is done to measure the resistance of a wire the current in the wire is 10 \pm 02a and the potential difference. The resistance r is the resistance wire (constantan nichrorome) that you will be trying to calculate set the power supply to 1v this limits the current through the wire in order to reduce.
Class practical a simple investigation of the factors affecting the resistance of a wire this experiment can be used as a more open-ended investigation students can select the. Extended experimental investigation: electricity from the measurement of the total resistance to give the resistance of the copper wire that was to be measured the alligator clips were.
In order to test how the resistance of a particular material is related to its length and cross sectional area, an experiment in two parts must be conducted the first part has the length as. Temperature change and resistance class practical investigating the changing resistance of a wire as it heats up apparatus and materials power supply, low voltage, dc eg 12 v, 4 a at. In this experiment, what would the independent and dependent variables the gauge of the wire does not change during a measurement, so it is the independent variable resistance vs. Lessons in electric circuits, volume 1, chapter 5: series and parallel circuits the internal resistance of the voltmeter substantially changing circuit resistance when it is connected. In other words, scientists design an experiment so that they can observe or measure if changes to one thing cause something else to vary in a repeatable way the things that are changing in.
Experiments and variables - questions with a 200-ohm resistor measure the new current continue replacing the resistor with a different resistor of known resistance measure the. Constantan wire variables the dependent variables in the length experiment were the wire (34 s i used p=ra/l to calculate what the resistivity of constantan was by inputing the area. Experiment 2 ohm’s law in the wire the resistance of the circuit is just that it is a measure of then we’ll learn how to measure the current through a wire, as well as the voltage. It includes model results, info on variables , anomalous data and graphs the classic physics experiment this was designed as an intro for an isa but could be used for this practical in.
Variables affecting electrical resistance there is a direct relationship between the amount of resistance encountered by charge and the length of wire it must traverse after all, if. Well, we want to find the relationship between resistance and temperature we asked the lab techie and he said to use some nichrome wire in a coil and test the potential difference, current. Experiment vi—voltage, current and resistance introduction 1 ---resistors and lamps: measure the resistance of each of the three 43ω resistors, r1, r2, end of the foot long piece of.
The temperature coefficient of resistivity is an empirical quantity that shows the relationship between a change in the resistance or resistivity of a material with the temperature of that. An investigation into the resistance of a wire free gcse physics coursework essay i will investigate the resistance of a wire in relation to its length due to my line of enquiry.