The Effect of Temperature on the Resistance of a Metal Wire How does different temperatures affect the resistance of a metal wire/thermistor. Aim (preliminary): The preliminary aim of my coursework was to measure what affect different temperatures have on the change in resistance of a copper wire. Apparatus: * Distilled water * Heat proof mat * Tri pod * Bunsen burner * Copper wire * 5v power pack * Electrical wires * Crocodile clips * Thermometer * 100W
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
The Length of a Wire and Its Effect on Resistance Introduction: In an electrical circuit, the current (flow rate of charge) depends on the battery voltage that causes the charge to flow through the circuit and the components in the circuit. A circuit consists of a bulb, a battery and a resistor. The bulb is like a resistor, it slows down the electrons and the battery pushes the electrons and gives them energy. A component is a resistor, it slows down the flow of electrons. The bulb
Factors Affecting the Resistance of a Wire The aim of this experiment is to investigate one factor that affect the resistance of a wire. I will do this by performing an experiment. First I will need to identify the factors that effect resistance. There are a few factors that affect the resistance, it is determined by the properties an object has. This is know as resistivity. The factors I can investigate are : Ÿ Temperature Ÿ Length Ÿ Cross-sectional area/width Ÿ Material
in many ways using our natural recourses from the environment, for example: solar energy (from the sun) and hydroelectricity (where electricity is gathered by rushing water) Hydroelectricity is when electricity is generated by rotating coils of wire (rotors) between the poles of a magnet. The rotors are turned by rushing water falling over them. In a hydroelectric plant, water in usually stored in a damn. As the water falls down and rushes over the vanes connected to the rotors it looses gravitational
ohms' law, and to study the relationship between current and potential difference (voltage). Hypothesis: The current flowing through a metal wire is proportional to the potential difference across it (providing the temperature is constant). Apparatus: 1. Power Supply 2. Variable resistor 3. Ammeter 4. Voltmeter 5. Resistors 6. Electric wires Diagrams: ========= R1: R2: R1 + R2 (in series): R1 + R2 (in parallel): Method: 1. Set up the apparatus 4 times as
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)
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
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
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
[IMAGE][IMAGE][IMAGE][IMAGE][IMAGE][IMAGE]Clips V[IMAGE]Graphite Paper [IMAGE][IMAGE] V The Apparatus Ø Battery Ø Voltmeter Ø Ammeter Ø 0-1mA shunt Ø Wires connecting apparatus Ø Ruler Ø Scissors Ø Graphite paper Ø Clips holding the graphite paper The Method Ø One followed the above diagram to attach all the wires to the different pieces of apparatus. Ø I attached the clips to each end of the graphite paper. Ø I attached the 0-1mA shunt to the ammeter. Ø I read
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 must contain some electrons
The purpose of this report is to understand the failure of high strength steel wires due to the environment in which they are exposed to, this report will primarily be focusing high strength steel wires that are used in suspension bridge cables. Due to the environment that the bridge cables are exposed to their lifetime expectancy depends on the corrosion it undergoes. There are various types of corrosions that can occur such as pitting corrosion, stress corrosion and corrosion-induced cracking which
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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
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
up and use o Inner chart for different metal o Set up procedures o Equipment description • Cleaning the metal • Positions and types of welding • Overhead, Horizontal, Vertical, and Flat • Butt, Lap, Joint, Plug Introduction MIG welding, the most preferred and most efficient way of welding today’s vehicles, because of the more heat-sensitive metals and the use of thinner gauge this type of welding is recommended in all body shops. This is a wire-feed, fusion welding process that releases
Deville, in France, obtained the metal by reducing aluminum chloride with sodium. Aided by the financial backing of Napoleon III, Deville established a large-scale experimental plant and displayed pure aluminum at the Paris Exposition of 1855. Aluminum is a lightweight, silvery metal. The atomic weight of aluminum is 26.9815; the element melts at 660° C (1220° F), boils at 2467° C (4473° F), and has a specific gravity of 2.7. Aluminum is a strongly electropositive metal and extremely reactive. In contact
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