The resistance in a conductor essay
Resistance is a property of an electric conductor which opposes a flow of electricity and dissipates electrical energy away from the circuit this energy is created when electrons collide with particles, and other free electrons within the metal. For an ohmic conductor, doubling the voltage without changing the resistance will cause the current to a decrease by a factor of 4 b decrease by a factor of 2. An experiment to investigate the factors which affect resistance in a wire what is resistance a potential difference (v) applied across a wire of length (l), there is in the conductor, an electric field (e). 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, ie it has less resistance for example, gold has more free electrons than iron and, as a result, it is .
Yes, it is desirable for an ammeter to have a high resistance or low resistance because the lower the resistance, the better the ammeter as it is connected in series and so its resistance will affect the current flow and thereby affect any calculations to be obtained 2. First, resistance is a criteria in the electrical circuit that can resist the flow of current in addition, the resistance causes collisions on charged particles carrying a current with other particles that have a certain setup in the conductor. Get even a better essay we will write a custom essay sample on copper, constantan, manganan and nichrome was the best conductor it had a resistance of 022 per .
The higher the temperature of a conductor, the higher its resistance due to the high values of potential difference and current if a thin wire in a lamp tends to resist the movement of electrons in it, then we say that the wire has a certain resistance to the current. Resistance and electrical conductivity environmental sciences essay length of the conductor the resistance should be considerably higher for the 60cm length than . Resistance is the opposition to the flow of charge in metals, a ‘sea’ of free electrons enabling it to conduct electricity surrounds a lattice of positive ions the shorter the length of wire, the less energy is needed to move the electrons across the wire if the metal is attached to a power supply then the electrons flow through the metal . Essays on metallic conductor the metallic conductor is one of the most popular assignments among students' documents if you are stuck with writing or missing ideas, scroll down and find inspiration in the best samples.
Conductor resistance the resistance of a conductor depends on material silver is the best conductor of electricity, but it is seldom used because of its cost copper is almost as good a conductor as silver, is relatively inexpensive, and is adequate for most types of wiring. This free resistor calculator determines the resistances of resistors in either parallel or series, as well as the resistance of a conductor experiment with the voltage drop and ohm's law calculators, or explore hundreds of other calculators addressing health, fitness, math, finance, and more. Resistance • it is opposition to flow of current through a circuit, it depends how narrow is its cross section and how long its length • in other words the electrical resistance of a conductor is directly proportional to its length and inversely proportional to its cross sectional area. Investigation to measure the resistivity of graphite essay sample aim the aim of the experiment is to find out the resistivity of graphite the resistance which is measured in ohms of a resistor is applied with three basic elements. We said previously that resistivity is the electrical resistance per unit length and per unit of conductor cross-sectional area thus showing that resistivity, ρ has the dimensions of ohms metre, or ωm as it is commonly written.
Through it will experience low resistance to the rate of flow 3 different types of materials will affect the resistance in different ways materials such as copper, are very good conductors, and is used for connecting wires. Essay writing guide how the resistance of a wire varies with length by robert loose introduction the purpose of this coursework is to find out how and why . As compared to acsr, aaac's ligher weight, comparable strength and current carrying capacity, lower electrical losses and superior corrosion resistance have given this conductor wide acceptance as a distribution conductor. Read this science research paper and over 88,000 other research documents resistance of a wire theory what is resistance electricity is conducted through a conductor, in this case wire, by means of free electrons.
The resistance in a conductor essay
Resistance in a conductor: the electrical resistance of an electrical conductor is the opposition to the passage of an electric current through that conductor. Essay ohm ' s law and resistance ohm’s law and resistivity-resistance nan li de la salle university 2401 taft avenue,manila, philippines 1004 [email protected] abstract when the resistance of a metallic conductor is considered constant the relationship between voltage and current is a linear relationship which means voltage is directly . Essay title: to investigate how the resistance of a wire is affected by the length of the wire gcse physics coursework - resistance of a wire coursework resistance of a wire.
- investigating the resistance of a wire resistance of a wire task to investigate how the resistance of a wire is affected by the length of the wire theory ====== what is resistance electricity is conducted through a conductor, in this case wire, by means of free electrons. Essay editing help upload your essay compare and contrast log in × scroll to top wire resistance essay examples for the difficulty of electron flow in . Also we can say that semi conductors are non-ohmic conductors, because as a current increases in a semi conductor, it gets hotter and so the energy is used to liberate more free electrons as the number of free electrons increase, resistance decreases. Investigating the factors that affect the resistance of a metal conductor investigating resistance in a circuit essays.
This will consequently increase the resistance of the wire however if the wire was shorter, the free electrons will not collide with the atoms as much as it did when it was longer. The effect the thickness of a wire has on resistance summary: the results of a classroom experiment in which the thickness of a wire has an effect on its resistance properties in physics, the resistance of a strand of wire is affected by four factors: the material of the wire, its thickness, its . Experiment to investigate the relationship between a conductor's length and wire to electrical resistance this essay has been submitted by a student this is not .