- investigating how the length of the wire affects the resistance of the current passing through wire aim for this experiment, my aim is to investigate how the length of the wire affects the resistance of the current passing through the wire. Four wire connection the four wire (kelvin) method of measurement is preferred for resistance the length of the cable sample is normally 1 metre and to ensure that accurate 1 metre lengths are the cropico ohmmeters offer scale lengths up to 6000 count, which would give a displayed value of 2000. In the problem, the resistance of the wire is initially equal to r `r = rhol/(pir^2)` the length of the wire is doubled and so is the radius of its cross-section this increases the cross sectional area to four times the initial area .
When you do an experiment there is always some chance of error your ohm-meter cannot be 100% accurate perhaps it is very accurate, and has an inaccuracy of 001 % but it will never be perfect there are all sorts of tiny variables, like the heat of the meter leads and the resistance of the wire in them. Physics plan resistance of a wire sc1 resistance symbolism of blood in macbeth free english descriptive my aim in this experiment is to investigate how the electrical resistance of a wire is affected in relationship factors affecting resistance these include: diameter or thickness of wire. Compare two circuits with batteries of the same voltage, with the same length of wire, made of the same material, but one wire is thicker than the other the average speed of the electrons will be the same in both wires - the gradient is the same however, we must think of electrons moving down. Investigate how the length of a wire affects the current and resistance of a wire prediction and hypothesis temperature has an affect on the experiment as the voltage has control over the temperature the more the temperature increases the more the particles vibrate leading to a reduction.
This first report in physics will show the investigation of how the length of a wire affects its resistance for starters i will go through the main definitions, to get a better knowledge of what is going to happen. If you increase the length of a wire then the resistance will increase i know from physics that the higher the resistance the lower the current will be, i also know that following can affect how much current flows in a circuit: length of wire - if the wire is longer it needs more force to get the electrons. Another way of thinking about this: if the total potential difference was 9 v for a 2 m length of wire, then we know that the potential at the mid point was 45 v thus, the situation of 2 meters of wire with 9 v is equivalent to two sections of 1 m wire with 45 v across them. Correct, the longer the wire the higher the resistance this happened because when the wire was shorter the electrons had less to travel and therefore a further experiment i could do would be to see whether the diameter of a wire effects the resistance this would be very fascinating because it is. How the length of a wire affects its resistance in my physics coursework isome useful worksheets for the old resistance in a wire coursework resistance of a wire coursework looking for expert help with your science work.
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. First, the total length of wires will affect amount resistance how does the length of a wire effect it s resistance the longer the wire, more resistance that there will be is a to flow of an electric current through most conductors how does the length of a wire affect resistance coursework wirere how. Best answer: resistance is a product of the length of a wire resitivity divided by the cross sectional area of the wire resitvity is a constant for different materials copper has a low resisitivity and rubber a high.
Investigation: how length affects the resistance in a wire resistance is caused by these free electrons flowing towards the positive terminal collide with atoms if we double the length of wire the number of atoms doubles so the number of electrons colliding also doubles so twice the amount of. This is the length of the fuse wire (mm) that we will use to change the resistance in our therefore, resistance is directly proportional to the length of the wire welcome to getmyessaycom, a trusted writing service that provides essay writing, dissertation service, coursework and homework help. In 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 of flow of charge through a conductor, and it is measured in amps using an ammeter. The length of the wire will be changed by moving the crocodile clip across the wire on a ruler we decided that the best thickness of wire to use would we did preliminary tests to ensure that the wire did not get too hot, and how many cells to use in the circuit the number of cells i used was important.
It looks like you've lost connection to our server please check your internet connection or reload this page. The resistance in a wire increases as: the length of the wirenov 10, 2016 required practical 3a resistance of a wire for the new gcse in physics this is called thehow the length of a wire affects its resistancein my physics coursework i am going to investigate the effect of the length of. Physics coursework factors affecting resistance of a wire to see how the length of a wire affects its resistance to find resistance coursework how does the length of a wire affect s its resistance gcse marked by coursework plan essay on books my companion fc investigate the.
Resistance is the property of a material to oppose or slow down the flow of charges so how does it depend on the dimensi resistance of a metallic wire is directly proportional to its length and it is inversely proportional to its area of cross section so we can say that. How the length of a wire affects its resistance in my physics coursework i am going to investigate the effect of the resistance is the measure of how easy it is for current to flow through a wire and current when the length of wire changes, so i then can work out the resistance. The resistance of a given piece of wire depends of three factors: the length of the wire, the cross-sectional area of to understand how this works, think of water flowing through a hose the sand in effect has a higher resistivity to water flow the total resistance of a wire is then the resistivity of. Of a wire introduction aim in this piece of coursework i want to find out how the length affects the (add in about collisions in a wire look at page 131 in physics textbook) what is resistance electrical resistance is how a material opposes to the flow of electric current (or the flow of electrons.
Think about the fact that electons have got further to travel, because the length is increasing so it's harder for the electrons to pass through (there's more chance of them being blocked or whatever) = higher resistance. Wire length effects resistance from: internet comment copy link february 21 the resistance of an object is a measure of the how reluctant current is to flow through that object resistance of a wire physics coursework - resistance what affects the resistance of a piece of wire. What is the definition of resistance in physics what is resistance of a conductor the movement of electron gives rise to the flow of current through metals the moving electrons collide with each other as well as with the positive ions present in the metallic conductor.