This is shown by my tables as the length of wire increases, the resistance also increases. Because of the enormous size the firm found that hat its product and consumer data were often incomplete, duplicated or inconsistent. Non metals are usually insulators. With other words the thinner the wire gets the higher the resistance. 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. Answer The first answer is clearly ridiculous, as the length of aconductor has absolutely no effect on the time it takes'electricity sic to reach the bulb'! The purpose of this investigation is to see how the length of wire affect the dependent variable, resistance.
Keep the wire tight against the ruler and taped firmly in place, so that there can't be any dispute in the length. I will stand up during the investigation to ensure that I do not injure myself if something breaks. The highway has to be designed to meet the specifications for both speed and volume. Wire is made up of atoms. Both Length and diameter work with each other. Therefore, the wire becomes hot.
I could have also tested out different wire such as nickel chrome, Constantine as in the preliminary results to find out different resistances of different wires. As the length of wire increases, the resistance also increases. In this article I will investigate what affects the resistance of a wire. Every time this happens, it causes resistance. There you have it: A thinner wire requires a higher voltage to carry the same current. However, this would then lose its value as an open investigation. Near room temperatures, metals have resistance.
I will also ensure that the wire does not heat up too much by confirming that I do not set the voltage too high on the power pack and by maintaining the same the voltage for every reading. C2C12 cells, primary mice muscle and human myotubes were isolated to test insulin, inflammatory and antioxidant response. I predicted this because from my past learning and the information I have gathered tells me that this is true. Introduction: Some metals such as copper, silver and gold are very good conductors of electricity. When you add a resistor in parallel, you are adding an additional path through which current can flow, and each resistor contributes a certain amount of conductance. This was because I could plot a graph and show the general trend.
A longer wire requires more width and should be made of a material that is highly conductive to cut down on resistance. For situations dealing with alternating currents, capacitance becomes an issue - as there is a current flow as the electric field fluctuates, but just as before - the dielectric constant is not a factor in a component's resistance. First, the total length of wires will affect amount resistance. However, due to my line of enquiry, I will only change the length of the wire. As water in a hose pipe, the longer the pipe the longer the water takes to reach its destination. And that the resistance is the opposing force, which slows down the flow of electrons. The circuit should be set up as above.
This means that the potential difference across the supply is equal to the sum of the potential differences across all the devices in the circuit. However when voltage is applied to the material the electrons drift toward the positive terminal of the bat-tery. Resistance is the results of energy loss and heat. The readings from the ammeter and voltmeter will be used to work out the resistance. The Length because the wire is thinner than the rest of the wires the electrons wood have more trouble going through for if the wire had the same width there would be no difference, and the longer it is the harder it will be for them so the resistance will go up. Resistance the physics classroombbc gcse bitesize resistance. I'm using strands because it helps you see how a thicker wire is the same as having multiple smaller wires.
Variable resistor- if reading of voltmeter beyond range adjusted. Firstly the concentration of the electrolytes was changed, then the half cells and. This involves the collisions between the free electrons and also the fixed particles of the metal, free electrons and other impurities from the metal. The choice of materials that we could use for the wire affects the resistance that we receive. The tools we used were far from simple but were not as complex as tests conducted in a laboratory would of been, for example the way the wire was straightened, if this were to of been done in a laboratory, then the wire would of been near perfectly placed and straightened. There are possible sources of error that might have led to inconsistent results, such as a kink in the wire.
The electron flow will adjust itself to whatever the wire thickness is. As the current continues to flow there are certain factors which increase the resistance; Length of wire: as the length increases there will be a higher percentage of fixed atoms, therefore the electrons carrying the charge will collide more frequently, increasing the resistance Surface Area of wire- As you increase the surface area of a wire the resistance will decrease because the electrons will be able to trav. Again, with the hose pipe, if the tube is thick it allows more water molecules to pass through at one time compared to a thinner tube. Even if we disregarded the possibility that electrons don't really actually move, you'd thing about them again as cars but not moving in straight lines! In the context of your analogy, the highway is always full of cars. Introduction: Some metals such as copper, silver and gold are very good conductors of electricity. This needs to be as accurate as possible.
Overall, my results are very consistent with my predictions. This is because if the wire was twice as long it would have twice as many atoms for the electrons to collide with making it twice as hard for the current to flow. I will then find the average of these results by calculating the mean. The higher the temperature of a conductor, the higher its resistance? Like the resistance to water flow, total amount of charge flow within a wire an electric circuit is affected by some clearly identifiable variables. Leads -this connected all the equipment Crocodile clips -this was used to connect the leads to the metal wire to let a current pass through.