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  • Resistance Of A Length Of Wire
    1,426 words
    GCSE Physics Coursework - Resistance of a Wire Coursework Resistance of a WireTaskTo investigate how the resistance of a wire is affected by the length of the wire. Theory What is resistance? Electricity is conducted through a conductor, in this case wire, by means of free electrons. The number of free electrons depends on the material and more free electrons means a better conductor, i.e. it has less resistance. For example, gold has more free electrons than iron and, as a result, it is a bette...
  • Resistance Of A Wire
    1,109 words
    Introduction In this piece of coursework, I have been set the task of investigating factors that affect the resistance of a wire. There are many things that affect the resistance of a wire but I have only got the chance to do one of these. The one I will choose will depend on it being the most effective and on its ease to do. Firstly, I will give an explanation of how resistance works. Resistance is when travelling electrons in a wire collide with the atoms of the wire. The collisions between th...
  • Plot Resistance Versus Cross Section
    1,846 words
    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. Hypothesis: I think that the higher the cross sectional area, the lower the resistance in the conductor will be. This is because the Resistance in a metal conductor happens because as the electrons move through the material (onc...
  • Resistance And L Length Of The Wire
    1,231 words
    Background Knowledge Resistance, in electricity, is a property of any object or substance to resist the flow of an electrical current. The quantity of resistance in an electric circuit determines the amount of current flowing in the circuit for any given voltage applied to the circuit. The resistance of an object is determined by the nature of the substance of which it is composed, its resistivity, accounting for its dimensions and its temperature. Resistivity is expressed in terms of Ohms / cm ...
  • Current And Resistance Of A Wire
    468 words
    Resistance Coursework Planning: Aim Investigate how the length of a wire affects the current and resistance of a wire. Variables The variables that could change resistance are: o Length of the wire Cross section area (thickness) o Changing material so Changing temperatures The variable I am going to change in my experiment is the length of the wire. Prediction and Hypothesis I think as you increase the length of the Constantan wire, you also increase the amount of resistance. The current is the ...
  • Wire The Resistance
    1,084 words
    Resistance coursework Aim: My aim is to find out which factors affect the resistance of wire and how they affect them. Ohm's Law: Ohm's law is also relevant to know of Ohm's Law, which states that the current through a metallic conductor (e.g. wire) at a constant temperature is proportional to the potential difference (voltage). Therefore V, I is constant. This means that the resistance of a metallic conductor is constant providing that the temperature also remains constant. Furthermore, the res...
  • Resistance In The Nichrome Swg 32 Wire
    7,013 words
    Introduction The purpose of this investigation is to expose the factors responsible for affecting the resistance of a wire in an electrical circuit. Many factors will have to be investigated prior to experimentation. A prior knowledge of electrical circuits and the factors of resistance will be required. The conclusive objective will be that research on the subject matter is proven by experimentation. Resistance The standard opinion of resistance when electricity is concerned is the ability of a...
  • Resistance Of Wire
    317 words
    A imI am going to be studying the resistance of wire. The purpose of this investigation is to see how the length of wire affect the dependent variable, resistance. Prediction I predict that, as the length of the wire doubles, the resistance will also double, This means that the length will affect the resistance. Hypothesis Resistance is caused by electrons bumping into ions. If the length of the wire is doubled, the electrons bump into twice as many ions so there will be twice as much resistance...
  • 10 Cm Of Wire
    588 words
    Aim To investigate the resistance of a wire using the equation V = IRPredictionI predict that resistance will be directly proportional to the length of the wire. P. 6 a / P. 8 aApparatuso Voltmeter o Ammeter o Piece of woo do Copper wire (100 cm) o Crocodile clip so Connecting wire so 2 CellsDiagramMethodo I am going to have my experiment all set out with the apparatus as in the diagram above. The copper wire of 100 cm connected firmly to the piece of wood (wood is used as it will not interfere ...
  • Two Readings For The Same Wire Length
    1,434 words
    IF YOU INCREASE THE VOLTAGE - MORE CURRENT WILL FLOW. IF YOU INCREASE THE RESISTANCE - LESS CURRENT WILL FLOW (UNLESS YOU INCREASE THE VOLTAGE). ' 'o'In Metals The Current Is Carried By Electrons 1. Electric current will only flow if there are charges, which can freely move. 2. Metals contain a sea of 'Free Electrons' (which are negatively charged). And flow throughout the metal if they are given energy. 3. This is what allows electric current to flow so well in materials. ' 'o'Resistance Resist...
  • Increase In Resistance Since Atoms
    632 words
    Electricity has three features that include current, voltage and resistance. Current is the flow of electrons round a circuit that is measured by the ammeter in amps (A). Whilst the voltage, refer to as potential difference, is the driving force that circulates the current around the circuit that acts like an electrical pressure. The unit of measurement for this is Volts (V), which is measured by a voltmeter. Resistance is a force that slows down the current; consequently it slows down the flow ...
  • Resistance Of A Wire
    735 words
    Physics Plan - Resistance of a Wire Aim The aim of my investigation is to investigate how length affects the resistance of a wire. Theory The four factors that affect the resistance of a wire are: o Length o Material o Temperature o Cross section Resistance is the force, which opposes the flow of an electric current around a circuit so that energy is required to push the charged particles around the circuit. Resistance is measured in ohms. Resistance occurs when the electrons travelling along th...
  • Wire From 100 Cm
    516 words
    Aim: In this investigation I want to find out how the length of a wire affects the resistance. Resistance: is a force that resists the flow of the current in a wire. Resistance = Voltage / Current R = V I Factors: The factors I think that will affect what happens in the investigation are: 1. The thickness of the wire. 2. The length of the wire. 3. Whether or not it is a good conductor. 4. The temperature of the wire. A Fair Test: To keep the investigation a fair test I will only change one facto...
  • Resistance Of A Piece Of Copper Wire
    1,575 words
    Plan In this investigation I am going to look at how the resistance of a piece of copper wire differs depending on its length. In stages of 10 cm. For this I will need: . Power source: To supply the electricity... Variable resistor: To control the voltage flowing across it... Voltmeter: used to measure the potential difference between two points... Ammeter: used for measuring amount of current in a circuit... Crocodile clips: to alter the length of the copper wire without actually cutting it. An...
  • Electrons Pass Through The Wire
    613 words
    Aim: I am trying to find out what affect changing the length of a piece of nichrome wire has on the current flowing through it. What happens if you change the thickness as well? Diagram: I will need the following equipment: 1 x Ammeter 1 x Voltmeter 1 x Power supply 1 x Variable resistor 1 x Length of nichrome wire 1 x Meter-rule 6 x Connecting wires 1 x Crocodile clip My prediction is: If the length of the wire is increased, then the resistance will increase. This is due to the electrons having...
  • Length Of A Piece Of Nichrome Wire
    303 words
    Aim: I am trying to find out what affect changing the length of a piece of nichrome wire has on the current flowing through it. What happens if you change the thickness as well? Variables: There are a number of different variable I could use to find ot my aim (I am trying to find out what affect changing the length of a piece of nichrome wire has on the current flowing through it. These are the following - the length of the wire or the diameter / thickness / thiness of the wire or the voltage fr...
  • Resistance Of A Length Of Wire
    2,020 words
    A deel Malik 11/g December 2002 Aim The aim of this experiment is to investigate how the resistance of a wire changes in relationship to its length. We will increase the length of the wire and measure the voltage and current, and then calculating the resistance. Prediction I think that as the length of the wire increases so will the resistance of it. I also believe that the rate at which the length of the wire is increased, the resistance of the wire will also increase in direct proportion to th...
  • 40 0 Cm The Avg Resistance
    292 words
    Analysis: With scientific knowledge the graph has turned out like it should have turned out, in that the resistance will increase as the length of a wire increases. This is because of the idea, discussed in the prediction that if you double length, you double the number of atoms in it. As the charges move through the conductor they collide with other atoms. They transfer some of their kinetic energy. This transfer on collision is what causes resistance. So doubling length doubles the amount of a...
  • Resistance Of The Wire
    482 words
    Physics GCSE Coursework AT 1 Investigation Resistance of a wire How does the resistance of a wire change when it get's longer? Prediction My prediction is that the longer the wire, the higher the resistance, because it takes more energy going through the wire. During the experiment what exactly will i measure? In the experiment i will measure the resistance of the wire. Fair test The variables which i am going to keep the same in the experiment are going to be the type of wire and also the thick...
  • Length Of The Wire In My Experiment
    1,929 words
    Aim: My aim in this experiment is to investigate how the electrical resistance of a wire is affected in relationship to the length of that wire Factors affecting resistance these include: . Diameter or thickness of wire. Temperature at which wire is kept. The material from which the wire is made... The length of the wire In my experiment I will only be investigating one factor which is the length of the wire. The wire I am using is made out of nichrome. Background information: Resistance control...

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