J����~|]g��av+?5�ӏ�gor��=�����{����z-���+�i-Y2-|4�^Kv}����M��d�8-�pTo�S���{��� ���"��^j�oR�P����X)�T����`E�Ha This is because if the length of the wire is doubled, the electrons bump into twice as many atoms, so there will be twice as much resistance. Using the same piece of wire throughout the experiment meant its temperature rose slightly over time, which may have affected my results. H ...- A. The slope reveals that when the length of a wire is increase, the resistance would go up by an approximate measurement of 1.25 Ω, which could be proven by the calculation of the graph where all the average was calculated from the average increments of each wire — (0.7+0.78+2.42+1.1)÷4=1.25. It is therefore important to take note of the resistance when dealing with wires to supply power to a device or so. Record the readings on the ammeter and voltmeter for 8 different lengths.

If the length of the wire is doubled, the electrons bump into twice as many ions so there will be twice as much resistance.

Switch on again. @ehehfeelgood - the coursework is for GCSE students and those in secondary School.Thx but this is not good for year ones they can't read you know should have some picturesThis has helped me a lot in my y7 Science work Thank YouThanks! Hi, i am currently doing my physics coursework, and i need your help on what to write for my conclusion. Once again, thank you!Great help. <>

%PDF-1.7 10. thanks so much. Therefore, the longer the wire, the higher the resistance.Recorded Resistance for 5 Different Lengths of Nichrome WireAverage data no. %����

Turn on the power and set the power pack so that the voltmeter reads 0.1 volts. It only takes seconds! When these electrons move, they create an electric current.Conductors have resistance, but some are worse than others. Let us do your homework! 11. Another improvement I would make if I was to repeat this investigation so that I This had really helped me with my Year 9 work. For example, when the length of the wire is 20cm the resistance is 3.14 ohms; when the length of the wire is 40cm the resistance is 6.18 ohms, which is roughly double. For instance a 10cm wire has 5 atoms, a 20cm wire has 10 atoms.

So if the length is doubled the resistance should also double. My teacher told me that i need to write about the problems that i had during my experiment. Detailed Plan. When electrons travel through wires or other external circuits, they travel in a zigzag pattern that results in a collision between the electrons and the ions in the conductor, and this is known as resistance. luv udo you know what the thickness of the wire is? A power pack was not also used as the high voltage heated up the wire and therefore was very dangerous, so batteries were a safer option. Another example would be the volume control on a radio where a resistor is used to portion out the signal of it which allows you to control the volume level.It is clear now that resistance is an important attribute that has been applied to many forms of technology to perform a useful function, and this experiment aims to see how we can control it. Let us do your homework! The resistance of a wire causes difficulty for the flow of the electrical current of a wire to move and is typically measured in Ohms (Ω). Repeat steps 3 to 12 for another diameter of wire. When coming to measure those two datas, the datas gained from each trial were very inconsistent, which was presumably caused by the inconsistent rubbing with sandpaper, which will be further elaborated in the suggestions for improvements.The pattern on the graph supports the hypothesis of the experiment which predicted that if the length of the wire increased, the resistance measured would increase as well, the graph will observe a positive gradient with the mathematical function of y = mx + c which is supposed to display the increasing amount of resistance.

Factors Affecting Wire. Resistance of a wire conclusion? Original prediction: I expect to see an increase in resistance with an increase in voltage as I increase the length of the wire, and similarly a decrease in resistance with a decrease in voltage as the length of wire decreases. This is because if the length is doubled the numbers of atoms will also double You must have JavaScript enabled in your browser to utilize the functionality of this website.Tough GCSE topics broken down and explained by out team of expert teachersLearn the art of brilliant essay writing with help from our teachersGet your head around tough topics at A-level with our teacher written guidesStart writing remarkable essays with guidance from our expert teacher teamUnderstand the tough topics in IB with our teacher written Study GuidesLearn the art of brilliant essay writing from our experienced teachersStruggling with an assignment? Analysis. It has been a known fact that the length of a wire is one of the four factors that has a role in the resistance of the wire, and this experiment has simply confirmed it. This means that essaybank.co.ukI am assuming that the temperature is kept constant and that the material is kept constant. Make sure that the metre rule is actually one metre long and not one or two centimetres shorter.

Learn the basics with our essay writing guide If there are twice as many electrons getting through, as there is twice the current, the resistance must have halved. The said scientist hence came up with a rule for working out resistance, shown on the image on the side:Resistance is an important factor to pay attention to because, one, an overly-high resistance can cause a wire to overheat due to the friction that is caused when the electrons move against the opposition of resistance, which is potentially dangerous as it could melt or even set fire. To collect the data for my graph I have chosen to take a range 20 of lengths. This means that the length will affect the resistance more than the thickness will.

The free electrons keep bumping into atoms. Take voltage and current readings at intervals between 0V and 13V, by sliding the variable resistor to different positions.

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