Constantan Wire Essays

  • Investigating how the Resistance of a Constantan Wire is Affected by Its Length

    829 Words  | 2 Pages

    Investigating how the Resistance of a Constantan Wire is Affected by Its Length Introduction: In this experiment we will be investigating how changing the length of a piece of Constantan wire will affect the resistance. Therefore the length will be an independent variable and all of the other variables we will try to keep the same. The other variables included in this experiment are temperature, thickness of wire and density of wire. Resistance is a force, which opposes the

  • The Relationship Between the Length of Constantan Wires in a Circuit and the Current

    764 Words  | 2 Pages

    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

  • Establishing the Current-Voltage Relationship For a Metal Conductor

    1513 Words  | 4 Pages

    experiment are: 1. Thickness of the wire. 2. Length of the wire 3. Input of voltage coming from the power supply should be kept constant. 4. Temperature of wire should be kept constant. Firstly if the constantan wire was increased then the resistance will be less. Thin wires have more resistance than thick wires. Secondly if the length of the wire got longer then the resistance is greater than a short wire. Thirdly if resistance increases and the wire heats up the straight line on the

  • Factors that Affect the Current Needed to Melt a Wire

    536 Words  | 2 Pages

    Factors that Affect the Current Needed to Melt a Wire Aim: Investigate one factor that affects the current needed to melt a wire. Plan: I am going to investigate what factors affect the current needed to melt a wire. In this investigation, I have decided to change the thickness of the wires that I use, and then while increasing the resistance, I will measure the current needed to melt the different wires. I will start with the variable resistor set to the maximum. I will slowly decrease

  • Resistance of a Wire

    2329 Words  | 5 Pages

    Resistance of a Wire Aim Which factors affect the resistance of a wire? Prediction I believe the factors which affect the resistance of a wire are: 1. The length- the increase in length could increase the resistance. 2. The thickness of the core. 3. The material of which the wire is made up of- e.g. Copper, constantan and nichrone. 4. The number of strands within a wire: 5. The amount of current flowing through the wire. For this experiment, the factors which will be

  • The Electrician's Dilemma

    4006 Words  | 9 Pages

    The Electrician's Dilemma An electrician has been asked to repair an old radio. He believes that he needs a resistance of 1.9 ohms which is not easily obtained. You are provided with some reels of resistance wire and are asked to plan and carry out an investigation to help the electrician solve this problem. When your investigation has been concluded you discover that a resistance of 28.5 ohms is also required to complete the repair. Show how you use the data from your investigation

  • The Resistance of a Wire

    1567 Words  | 4 Pages

    The Resistance of a Wire Introduction In this investigation I will be trying to find out the resistance of a piece of constantan wire. I know that according to ohms law, the p.d is proportional to the current so if the p.d doubles so will the current. Through past experiments I know how to work out resistance, to work it out I use this formula Where the resistance is R, the p.d is V and the current is C, from this you can work out the resistance of any circuit. Aim of the Preliminary

  • Investigating How the Length of a Wire Affects Its Resistance

    1181 Words  | 3 Pages

    Investigating How the Length of a Wire Affects Its Resistance Planning: Risk Assessment: * I will handle the power supply carefully. * I am going to only use a maximum voltage of 2 volts. * I will be careful when handling the mains equipment. * I will make sure I have a clear space to work in and nothing on the floor around me. In this investigation, I will set up a simple circuit to be able to read the voltage and current when the length of wire changes, so I then can work out

  • Investigating Factors Affecting Resistance of a Wire

    558 Words  | 2 Pages

    Investigating Factors Affecting Resistance of a Wire Aim --- Investigate what factors affect the resistance of wire, however in this experiment I am going to monitor how the length of a wire affects the resistance of a wire if the current is kept the same. Method ------ 1) Arrange apparatus as shown in the Diagram: 2) Cut a length of wire over a meter long and sellotape to a meter ruler. 3) Attach one positive crocodile clip to 0cm, and move the negative up/down, stopping

  • Resistance of a Wire

    779 Words  | 2 Pages

    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

  • Investigation Into the Resistivity of a Wire

    1884 Words  | 4 Pages

    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

  • Transmission Media Is How Information is Broadcast

    1171 Words  | 3 Pages

    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

  • Factors that Affect the Strength of the Electromagnet

    1566 Words  | 4 Pages

    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

  • Analysis Of The Wire

    1568 Words  | 4 Pages

    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

  • Health and Safety in a Computer Room

    985 Words  | 2 Pages

    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

  • Factors Which Affect the Resistance of a Wire

    1487 Words  | 3 Pages

    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

  • Installing Car Audio

    808 Words  | 2 Pages

    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

    920 Words  | 2 Pages

    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

  • Elizabethan Sonnets

    590 Words  | 2 Pages

    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...

  • Telecommunication in Jamaica

    2958 Words  | 6 Pages

    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