The Thickness of Nichrome Wire And Its Effect on Its Resistance Introduction A current is the flow of negative electrons around a circuit. Electrons get pushed out of the negative pole of the cell and drift slowly round the circuit, from atom to atom in the wire, to the positive pole of the cell. A current flowing in one direction like this is called direct current. (d.c.) A cell pushes these electrons around a circuit. It acts as an electric pump. Different cells provide electrons
Resistance of a Wire Introduction Resistance is the opposition a material offers to the flow of electricity. The electrical resistance of an object is not only by what material it's made of, but also by its shape. A very thin copper wire has more resistance than a thick copper wire of the same length. A very long copper wire has more resistance than a short one of the same thickness. Resistance is measured in Ohms. Variables There were three variables that our group was able to choose
is proportional to load and so if load increases so does extension and so stretching distance. Equipment: * 25swg Copper * 26swg Nichrome * 32swg Constantin * 32swg Nichrome * Stand * Clamp * Ruler * Weights * Hook Method Step 1: Collect all equipment Step 2: Set-up as diagram below shows. Step 3: Get a Copper wire, and using a cylindrical object (same size all the time), wrap around to create a spring.
Factors Affecting the Resistance of a Metal Wire 1. Investigate some of the factors that affect the resistance of a metal wire. The current and voltage will be measured and then V = IR will be used to calculate the resistance. The potential divider circuit produced better results in the investigation into how resistance depends on the number of identical resistors connected in series, so this circuit will be used for this investigation, too. Variables and Constants 2. Possible
Investigation Into the Resistivity of a Wire Aim: The aim of this investigation is to see how the length of Nichrome wire affects its resistance Pre-test Results: Wire Type Swags Length of Wire (cm) Voltage (v) Current (a) Resistance (Ω) Constantan 26 10 20 40 13.5 27.5 56.4 0.4 37.5 687.5 1410 Copper 26 10 20 40 0.9 1.5 2.5 0.4 22.5 37.5 62.5 Nichrome 26 10 20 40 32.5
Factors Which Affect the Resistance of a Wire To start off this experiment I feel that it is suitable to explain the main facts of this study. Below is a section explaining the resistance in detail. Facts on Resistance: I have shown how resistance occurs. · WIRE · ATOMS · ELECTRONS Resistance occurs when the electrons traveling along the wire collide with the atoms of the wire. These collisions slow down the flow of electrons causing resistance. Resistance is a
Resistance of a Wire Introduction: In this piece of coursework, I have been finding out factors that affect the resistance of a wire. Firstly, I will explain how resistance works. Resistance is when electrons in a wire collide with atoms also in the wire. When the electrons and the atoms collide the electrons start to move slower, which then causes resistance. So, resistance is how hard it is to move electrons through a wire. Now, I am going to tell you what are the factors of wire resistance
The Relationship Between the Length of Constantan Wires in a Circuit and the Current Aim To investigate the relationship between the length of constantan wires in a circuit and the current flowing through. Introduction ============ In a conductor electrons are able to jump between atoms. However in insulators they remain around a single atom unable to move. Constantan, a metal, unlike most other metals is a poor conductor although it is also a poor insulator. Being a metal it
Measuring the Resistivity of a Wire Aim The aim of this experiment is to find out how the area of the cross section of the wire affects the resistance and also to find out the resistivity of the wire having found the resistance over a certain length and using a certain cross sectional area. I will also experiment to see how the length of the wire affects the resistance. Plan The first thing that I will do is to set up the apparatus as shown below. A,V Except for the experiment
the two media, it is important for organizations to use both of them to capitalize on the benefits or advantages of each. Generally, wired media is media used to transport information through a network that involves the use of physical pathways i.e. wire. The most common types of wired transmission media include telephone cables and coaxial cables. With regards to computer networks, a wired home network involves connecting the computer or other related devices to a Super Hub with an Ethernet cable
Aim: To investigate factors which affect the strength of the electromagnet and make the strongest electromagnet possible. Apparatus: · Iron Rod · Leads · Power Pack · Crocodile Clips · Insulated Wire · Iron Nails · Voltmeter · Plastic Beakers · Electronic Balance Hypothesis: I expect the strongest electromagnet to have a 'soft' iron core; the highest number of coils (45); the strongest voltage (10V) and current and have the
The Wire is structured both horizontally and vertically, from the foot soldiers of the drug trade, through the school system, newspapers, police department to the higher executives in charge of everything, which shows the parallel and prevailing problems that plague all of society. The show provides a viewer with an insight into the steep decline in social order, in which cops, politicians, teachers, workers and criminals are surrounded by the corrupting forces that overwhelm them all. The Wire tells
frustration and depression. 4. ELF radiation- Elf stands for extremely low frequency. Electro-magnetic fields cause this. VDU screens give out radiation at the back and sides. Pregnant women are at most at risk. 5. Lose wires- are a hazard as anyone may trip over the wires and fall over Ways to combat the mentioned problems 1. RSI- The risk of RSI can be minimised if a computer user is able to sit in a comfortable, upright position when working. To be able to do this they need adjustable
Investigating the Factors that Affect the Resistance of a Wire Aim To study the factors which affect the resistance of a wire. Background Information Although current and potential difference measure different things, they are related to each other. In 1826, Georg Ohm discovered that doubling the p.d. doubled the current. (Taken from Ohm's Law: the current flowing through a metal wire is proportional to the potential difference across it (providing the temperature is constant)
Installing Car Audio When a person gets into a car, one of the first things they do is turn on the radio. Some people like the volume turned down real low and others like myself want loud blaring music. There are several steps to turn a factory sound system into a surround sound theatre. I have installed all kinds of car audio equipment into automobiles and it doesn’t come cheap. First thing anyone wants to do is to set a price range and compare prices at different retailers. The price range
Relationship Between the Resistance and the Length of a Wire Aim: To find the relationship between the resistance of the wire and the length of the wire Background Factors: i. Temperature : If the wire is heated up the atoms in the wire will start to vibrate because of their increase in energy. This causes more collisions between the electrons and the atoms as the atoms are moving into the path of
contradictory image of an ideal lover. The speaker insisted that his "mistress' eyes" were "noting like the sun. Coral" was "far more red than her lips' red" and "if snow be white," then "her breasts" were "dun." He also commented that "if hairs be wires, black wires" grew "on her head." Furthermore, her skin was dark and not smooth; her breath was unpleasant too. These descriptions summe...
came from the telegraph. The word telegraphy comes from Greek. "Tele" means distant and "graphein" to write. So the meaning is writing at a distance The first form of modern telecommunication - the electric telegraph - sent electrical currents along wires. On 24 May 1844, Samuel Morse sent his first public message over a telegraph line between Washington and Baltimore, and through that simple act, ushered in the telecommunication age. By 1868 Jamaica began to use the telegram. The West India and Panama
The Relationship Between Length, Width and Resistance of a Wire Aim: To investigate how the length and width of a wire affects the resistance of the wire. What is resistance? Electricity is conducted through a conductor, in this case wire, by means of free electrons. The number of free electrons depends on the material and more free electrons means a better conductor, i.e. gold has less resistance. For example, gold has more free electrons than iron and, as a result, it is a better
Tips for Making Meetings Effective Throughout a project-oriented deployment, you will be required to conduct numerous meetings with your customer. If you plan them properly, you will be able to steer the project in the right direction. It also gives you the ability to gather all the key players in one room, put them on the same page, work through any issues that might have arisen and make any decisions that need to be made. When I first started running my own projects, I was given some great tips