The resistance of a wire depends on 3 parameters: the conductivity of the material from which the wire is made, its cross sectional area, and its length highly conductive materials, such as copper and silver, are used to manufacture wire to achieve a low resistance. - investigating the relationship between the length and resistance of a wire i am going to investigate to see if the change in the length of a wire will affect the size of a current my prediction ===== i predict that the longer the wire is the higher the resistance this is because there are free moving electrons being resisted by the atoms in. Best answer: the resistance of a wire depends on the area of the wire (sort of like the flow of water depends on the area of the pipe) if the area is larger, there is less resistance the area of a circle is proportional to the square of the diameter, so if you double the diameter, you make the area four. Resistance increases with length because the electrons have further to go, so suffer greater collisions with atoms in the material look at these wires : electrons moving through the short wire only feel resistance for a short time compared to the longer one. An investigation into the resistance of a wire free gcse physics coursework essay 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 due to my line of enquiry, i will only change the length of the wire the variables i will.
Preliminary work: find out which wire is the best insulator main experiment: how does the length of wire affect its resistance ohms law: electric circuits are designed to transfer just sufficient energy to operate the components in the circuit. The nichrome wire proved that the longer the wire, the higher the resistance ohm's law states that the current flowing through the circuit is directly proportional to the voltage applied (if you double one, you double the other. Two wires of the same material are both connected to a 9-v ideal battery they have the same cross section area but wire 2 is twice longer than wire 1 compare the following quantities by answering if the quantity for wire 1 is smaller, equal or greater than the same quantity in wire 2. There are a few factors that affect how much resistance electricity encounters, including the width of the wire, the wire material and the length of the wire a longer wire requires more width and should be made of a material that is highly conductive to cut down on resistance.
The length of the wire doesnt practically have an effect on the current, but it has a considerable effect on the voltage profile across the wire provided that the wire is feeding a considerable amount of load in the intermediate path or at the extremity. 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 how the length of a wire affects its resistance a change in the length of wire will affect the resistance. The resistance of a typical conducting wire is low when temperature is low and high when temperature is high the increase in resistance alongside temperature is due to an increase in energy of the wire atoms, which cause them to vibrate more and impede the path of the electrons flowing through. How does changing the length of a nichrome wire with a diameter of 0315 mm – cut into measurements of 10cm, 20cm, 30cm, 40cm and 50cm — affect the electrical resistance generated within the nichrome wires that can be captured by an ohmmeter while keeping the temperature and the location of the experiment controlled.
Some of the concepts which might be introduced for the first time in natural sciences, have already been covered in the technology curriculum we were able to vary the resistance by changing the length of the graphite rod this tells us that the length of the rod affected the amount of resistance how does the length of the wire affect. - resistance of a wire planning: i am going to design an experiment to measure how the length of the wire affect the resistance in the wire i will use the same wire for all my measurements it is important to have a fair test, so the cross-sectional area of the wire must be the same for all measurements because as the cross-sectional area. Does electricity move better through thick wires or thin ones ib physics investigation does the cross sectional area of a wire resistors science learning hub.
Resistance is directly proportional to the length of the wire, and inversely proportional to the cross sectional area of the wire r = pl/a, where r is resistance, p is the material's resistance in ohms, l is the length, and a is the cross sectional area in m^2. Resistance of a wire increases with decreasing cross sectional area, increasing length and increasing temperature the material it is made out of also determines what a wires resistance is. Given the same wire and length, the bigger (cross sectional area) wire should have a larger resistance but according to the equation, this works in reverse i am a little confuse.
First, the total length of the wires will affect the amount of resistance the longer the wire, the more resistance that there will be there is a direct relationship between the amount of resistance encountered by charge and the length of wire it must traverse. The resistance of a resistor is given by the formula `r = rhol/a ` where `rho` is the resistivity of the material the resistor is made of, l is the length of the resistor and a is the cross. Factors affecting the resistance of wire 1883 words | 8 pages 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.