# How Does Length Affect Resistance? Essay

1679 Words Feb 11th, 2007 7 Pages
How does Length affect resistance?
Coursework

Aim
To find out how the length of a wire can affect resistance.

Factors affecting resistance

 Temperature
 Length of wire
 Thickness
 Type

Resistance is a 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. The symbol for an ohm is Ω
Here is the rule for working out the resistance of a circuit: V/I = R or
V - Volts
I - current
R - resistance

Variables

 length of wire
 thickness
 type of wire
 current
 voltmeter
 temperature

Dependant variables

 length

Prediction

As we are
My hypothesis was correct. 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.)
I worked out the resistance of the wires by using the formula:
V/I = R or
This happens because of the electrons that flow through the wire. These electrons travel at a steady pace, when they come to a different piece of wire, they have to slow down in order to be able to pass. While moving through the wire, the electrons need to squeeze together. This is because there is not enough room/space for them to pass evenly through. The more the electrons have to bump together then the higher the resistance. This is because it will take longer for them to pass from one side of the wire to the other side. This is because the current is slowed down. (The longer the wire, the longer the electrons have to stay squashed together, and so the longer they take to pass through the wire and the higher the resistance. Note that we used the nichrome wire because the material of the wire makes a difference because it is harder for electrons to pass through some materials than it is

## Related Documents

• ###### Essay How Does Globalisation Affect Nationalism?

In what ways does globalisation affect nationalism? 1. Introduction Broadly speaking, there are two schools of thought about the relationship between globalisation and nationalism. One school holds that globalisation points towards a “post-national, post-ethnic or post-racial future” – a new era of cosmopolitanism in which the atavistic nationalist passions of the 19th and 20th centuries come to seem positively quaint (Brubaker, 2009, p. 24). According to this reading, globalisation and nationalism…

Words: 1144 - Pages:
• ###### Essay How Does Salt Affect Vegetation?

melt ice and snow to ensure safety for pedestrians as well as motorists (Gould, 2013). To improve traction de-icing salts can often be mixed with abrasives such as sand, cinders, gravel, and sawdust (Gould, 2013). So, the question being is how does road salt affect vegetation? Plants can become injured when the roots and the foliage become exposed to salt water (Gould, 2013). The foliage becomes damaged when water that has been treated with salt is sprayed up from passing by vehicles (Gould, 2013).…

Words: 907 - Pages: 4
• ###### Essay How Does Osteoporosis Affect The Body?

was diagnosed with osteoporosis. She is clueless on what osteoporosis is, or what it does to the body. What exactly is osteoporosis? Osteoporosis is a condition in the bone, when the bone mass reduces, the bones become weak. How does it affect one’s body? Osteoporosis allows the bone to break easier. According to “How does osteoporosis effects the body?” written by Lori Newell “Osteoprosis [SIC] most often affects the bones in the hip, spine and wrist. When you have osteoporosis your bones lose density…

Words: 1184 - Pages:
• ###### Essay How Does Unemployment Affect Individuals?

affected if you are unemployed today. First it will be individual; the main effect will happen to you, but it will also affect your family or the around you. Second is society, which relates to the economy or other people in your country. Being unemployed are awful, not only it can tear you and your family apart, also harms the society as a whole. How does unemployment affect individuals? According to “job-interview-site” unemployment can cause many problems to individuals, for example, mental…

Words: 833 - Pages: 4
• ###### Essay How Does Technology Affect Interaction?

of technology use that we decided to pursue further. From here we started with the broader deductive research question asking how technology affects interaction. After the observations we settled on two other more focused inductive questions: how does technology affect interactions between two or more people in a prosocial environment (coffee shops, in this instance) and how do people depend on technology? We began collecting data with the four researchers each collecting one hour of observation time…

Words: 1819 - Pages:
• ###### Essay How Does Society Affect The World

How Does Society affects the World “When you judge others, you do not define them, you define yourself,” Earl Nightingale. The stories “Good Man Is Hard to Find” and “Everything That Rises Must Converge”, both stories written by the author Flannery, O’Connor are stories that imply how the morality and immorality affects the social lives. The story “Good Man Is Hard to Find” by Flannery O’Connor is a story that defines what the word “Good” is, but everybody has a personal opinion of what’s good and…

Words: 1612 - Pages: 7
• ###### Essay How Does Crime Affect Society?

intrigued me. I am interested in studying a criminology and criminal justice degree to fulfil a deeper understanding of what crime and criminal justice behaviour actually is?, what makes people commit unthinkable crimes?, how do some criminals commit ruthless crimes?, how does crime affect society? The many questions lingering through my mind drive me more towards this insightful course. Studying Investigative Services and Government Fraud control at the Australian School of Security and Investigations…

Words: 753 - Pages: 4
• ###### Essay How Does Racism Affect Society?

How does racism affect individuals in modern society? Racism is one of the most controversial issues in modern society, as large proportions of the contemporary populace are affected by it. Racial and ethnic discrimination occurs on a daily basis, which significantly affects the progress of millions of people around the world. From denying individuals the basic principles of equality may lead to disputes that can have a negative influence on society and can lead to racism. Racism portrays the negative…

Words: 1163 - Pages: 5
• ###### Essay Does Attractiveness Affect The Sentence Length Of A Crime?

The general topic the class experiment was how attractiveness affected the sentence length of a crime. This is important since it directly affects the lives of defendants in court room situations. Judges should be aware of this potential bias as they are deciding ruling. Sigall and Ostrove, conducted a study focusing on the same topic. The independent variable was the level of attractiveness with the crime committed. The dependent variable was how long the sentence was that the participant determined…

Words: 1656 - Pages: 7
• ###### How does the length of Magnesium affect the rate of reaction?

How does the length of Magnesium affect the rate of reaction? Input Variables – Magnesium strip Hydrochloric acid Outcome Variable - Release of hydrogen I have chosen to investigate whether the difference in length of a Magnesium ribbon, would change the speed in which the reaction between Hydrochloric acid and Magnesium takes. We will measure this by timing how long until the magnesium strip vanishes and there is no release of Hydrogen. Aim: I am trying to find out whether the…

Words: 1123 - Pages: 5