Resistance wire used after preliminary experiment teacher suggests link between resistance and dimensions of a metal student makes full decision about methodology, equipment and materials all choices are fully justified with reference to experimental errors and safety opportunities for observation and assessment of. In this episode, students learn how and why the resistance of a wire depends on the wire's dimensions they learn the definition of in this experiment you will study how the size and shape of a conductor affect its resistance, even though the material from which the conductor is made does not change requirements. In the conduction of this experiment i will be examining the resistance of a wire this experiment queries the relation between voltage and amps flowing through 5 different thicknesses of wires electricity is transported through the wire by electrons when a circuit is switched off and there is no electric current present the. Mr habgood shows you how to measure the resistance of a wire when you change its length. First before starting my coursework i have decided to choose a factor that will affect the resistance of a wire i shall do this by going through all of the factors that affect the resistance of a wire and how i would measuring each factor to find out which would be the most effective and easiest factor to measure below is a list of. 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 best way to do my investigation the results will help.
Factors affecting the resistance of a wire the aim of this experiment is to investigate one factor that affect the resistance of a wire i will do this by performing an experiment first i will need to identify the factors that effect resistance there are a few factors that affect the resistance, it is determined by the properties an object. The independent variable is the one that we change (eg by changing the length of resistance wire) the dependent variable changes in response (eg the resistance increases) the control variable, which is kept constant to make sure that it's a fair test if you were measuring temperature rise with the power of a heater,. The problem i am investigating is the effect of temperature on conductivity and resistance using a suitable conductor such as a copper wire, the following experiment will study whether the temperature of a wire will affect the flow of electrical current through a conductor many experiments have been carried out to study the.
Tutorials, tips and advice on gcse physics coursework and exams for students, parents and teachers resistance & length two wires, same diameter, different lengths electrons moving through the short wire only feel resistance for a short time compared to the longer one this means its resistance is less think of the. An interactive science experiment to investigate some of the factors that affect the resistance of a metal wire.
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 it is for current to flow through a wire current is the rate. Set up the circuit as shown in the diagram set the power supply to 1v this limits the current through the wire in order to reduce any heating effect which may change the resistivity 2) record the readings on the ammeter and voltmeter for 8 different lengths complete a table as below and calculate the resistance of the.