This interactive animation describes about the electrical resistance, factors affecting resistance of wire it also describes about the length of the wire, thickness of the wire, material of the. Many appliances such as washing machines and electric cookers use electricity in factories, electrical energy powers machines if an electric voltage of 1 volt maintains a current of 1 ampere through a wire, the resistance of the wire is 1 ohm - this is called ohm's law. Does the resistance of an electrical wire depend on its length essay a pages:5 words:1333 this is just a sample i can therefore say from the result of this investigation that the resistance of an electric wire does depend on its length, and the resistance of the circuit is greater if the length of one of the wire is increased, because.
Resistance of a wire theory 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, ie it has less resistance. Resistance of a wire task the resistance of a wire depends on factors, one of which is the length of the constanton wire, i will be investigating this into more detail. American wire gauge (awg) is a standardized wire gauge system for the diameters of round, solid, nonferrous, electrically conducting wire the larger the awg number or wire guage, the smaller the physical size of the wire. Current resistance wire affects length essays and research papers search any of the words all of the introduction the purpose of this investigation is to expose the factors responsible for affecting the resistance of a wire in an electrical circuit many factors will have to be investigated prior to experimentation a prior knowledge of.
The electrical function of a resistor is specified by its resistance: common commercial resistors are manufactured over a range of more than nine orders of magnitude the nominal value of the resistance falls within the manufacturing tolerance , indicated on the component. Types of fault high resistance connections a high resistance connection can occur in a circuit anywhere a cable or wire is joined this will usually be at an accessory such as a socket-outlet, switch, light fitting, or junction box. The symbol for resistance is the letter r resistance is measured by a unit called the ohm the greek letter omega (s) is used as the symbol for electrical resistance the figure below summarizes the factors that affect resistance. Resistance of a wire through is an insulator conductors intended to have resistance are called resistors (symbol ) voltage- given the symbol v, measured in volts using a voltmeter current- given the symbol i, measured in amperes using an ammeter metallic structure diagram resistance resistance is the ability to prevent or resist the flow of electrical current. Like the resistance to water flow, the total amount of resistance to charge flow within a wire of an electric circuit is affected by some clearly identifiable variables first, the total length of the wires will affect the amount of resistance.
The lengths of resistance wire should be taken from the same piece of resistance wire, ensuring that the cross-sectional area is the same throughout 4 the results from the volt and amp metres will be left for a few seconds, and then recorded to ensure that they are accurate. Resistance, in electricity, property of an electric circuit or part of a circuit that transforms electric energy into heat energy in opposing electric currentresistance involves collisions of the current-carrying charged particles with fixed particles that make up the structure of the conductors. Factors affecting the resistance of a wire essay by jagga, high school, 10th grade, may 2004 download word file, 5 pages, 30 downloaded 34 times keywords resitances of a wire:it is about how length effects the resistance of a wire electric current is the movement of electrons through a conductor in this experiment a metal wire.
The resistance of a wire causes difficulty for the flow of the electrical current of a wire to move and is typically measured in ohms (ω) george ohm discovered that the potential different of a circuit corresponds to the current flowing throughout a circuit, and that a circuit sometimes resists the flow of electricity. 20 electric current, resistance, and ohm's law • use the thermal coefficient of resistivity to calculate the change of resistance with temperature 204electric power and energy such as the cross-section of a wire conventional current is defined to move in the direction of. The electrical resistance of an electrical conductor is a measure of the difficulty to pass an electric current through that conductor the inverse quantity is electrical conductance , and is the ease with which an electric current passes. Introduction the purpose of this investigation is to expose the factors responsible for affecting the resistance of a wire in an electrical circuit.
Electrical charge voltage current resistance ohm's law an ohm's law experiment resources and going further through a wire or the voltage of a battery sitting on a table even the lightning in the sky, while voltage, current, resistance, and ohm's law - learnsparkfuncom. Year 12 physics eei: factors affecting electrical resistance uploaded by phillip soalheira an extended experimental investigation done in year 12 (high school), looking at physical factors that affect the electrical resistance of various objects. Resistance and conductance - the reciprocal of electrical resistance is conductance resistivity and conductivity - temperature coefficients for common materials - resistivity, conductivity and temperature coefficients for some common materials as silver, gold, platinum, iron and more. Electrical resistance in metals is caused by the temperature of the metal or impurities in the metal both increases in temperature and higher levels of impurities impede the flow of electricity through the metal material the shape and size of the particular metal also influences its level of.