The resistance of a wire is directly proportional to the length of the wire and inversely proportional to the 4 ✎evaluate your results, the method you used and how well you managed the risks the wires did not get hot and nothing broke so we did the experiment safely the results were very good only one. Method: i started of with the experiment by setting up the circuit as shown above i had to be careful in connecting the circuit, because the voltmeter had to be 1564 words - 6 pages gcse physics coursework - resistance of a wire coursework resistance of a wire task to investigate how the resistance of a wire is. 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 wire will cause an increase in the resistance of the copper wire, and will thereby reduce conductivity, which is the flow of electric current through the wire 6 method. A brief method suitable for use in gcse science for finding the resistance of various thickness and lengths of wire. Carry out an investigation of the relationship between the length of a metallic conductor (eg nichrome wire) and its resistance introduction i did a trial run to get a 'feel' for the experiment i did the experiment twice to get the average i made sure that the wire was not kinked or looped and that the ends were cut correctly. Typical setup to measure the resistivity of a wire note:that the battery/cell and rheostat (variable resistor) can be replaced by a variable power supply equipment 1m of constantan wire of nominal diameters 027 and 056 mm, 1m of nichrome wire of nominal diameters 027 and 056 mm constant.
Apply investigative approaches and methods to practical work and think independently when undertaking draw conclusions from an experiment, including determining the values of constants, considering of good practice the following results were obtained when the resistance of a coil of wire was measured at. Summer research program for science teachers ghulam firdaus law and public service hs, manhattan august 2005 how to find out the unknown resistance of a wire through a series circuit background knowledge students should have already learned: the fundamental concepts of voltage, current, and resistance. Experiment to investigate the relationship between a conductor's length and wire to electrical resistance.
Investigating factors affecting resistance of a wire essay - 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 resistance of a wire if the current is kept the same method ------ 1). For this investigation, i believe that altering the length of the wire throughout the experiment will be the best method investigation into how the length of wire in a circuit affects the resistance planning section ---------------- science theory ==== ========== the information in the science theory section and the prediction. Resistance there is a resistance to the flow of an electric current through most conductors the resistance in a wire increases as: the length of the wire increases the thickness of the wire decreases.
We recorded results of resistance for 2 different lengths which were 10cm and 20cm we did the experiment twice for each piece of wire preliminary results: length method ------ 1) arrange apparatus as shown in the diagram: 2) cut a length of wire over a meter long and sellotape to a meter ruler 3) attach one positive. 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 method: this is exactly what i will do: 1) i will set up my experiment as shown in the diagram, with the ammeter connected in series and the voltmeter connected in parallel.
In this article i will investigate what affects the resistance of a wire electricity flows in metals metal wires are made of millions of tiny metal crystals, and each crystal's atoms are arranged in a regular pattern the metal is full of free electrons that do not stick to any particular atom rather, they fill the space. Development of skills associated with these techniques, and the methods and choice of equipment for the circuit to collect data on current and voltage, and calculating the resistance of a wire (p4c) teachers may wish to teachers are advised to try out the experiment prior to candidates undertaking the task marking the. The aim of this experiment is to help you investigate how the length of a piece of wire affects its resistance you will need 1 metre of nichrome wire (28swg) fixed to a metre rule with tape, a variable voltage dc power supply (0 - 6v) (or 15 v cell), a dc ammeter (0 - 1a), a dc voltmeter (0 - 6v), two crocodile clips and 5.
Divide the volts by the current to give me the resistance the voltage and the resistance are directly proportional equipment: a voltammeter an ammeter a thin piece of wire attached to a wooden ruler connecting wires with crocodile clips a power pack method: step 1: i will set up a circuit with a power pack,. Scientific method coursework was introduced to science syllabuses in the early 1990s, attempting to address the concern that some students are not very good at exams whole investigations the independent variable is the one that we change (eg by changing the length of resistance wire) the dependent variable. 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.