Monday, October 28, 2013

Metallic Conductor

metallic conductor Determination of r for a argentiferous Conductor Aim: To determine the electrical resistance (r) of a disposed(p) taste of wire Introduction: Physical factors that affect the shelter of a conductor are aloofness, cross sectional compass and a constant that depends upon the material called the resistivity. The resistance per unit space is the said(prenominal) all along a uniform wire so if the resistance of different lengths of a wire is constitute out, the resistivity can be calculated.
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Resistance of a material, R = potential / Current Resistance of a conduc tor, R = r ? aloofness / Cross sectional area Apparatus: - 12V big businessman supply - Power leads - 6 connecting leads - 2 crocodile clips - given pattern of wire (? 5 m) - variable resistor ? is apply to cast away the resistance to change the current and voltage for each length - ammeter ? the 5 ampere outlet was apply since the current was mainly over 1 amperes - voltmeter ? the 5 volt outlet was used because voltage was always below 5 ...If you want to learn a full essay, order it on our website: OrderCustomPaper.com

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