metallic conductor Determination of r for a argentiferous Conductor Aim: To determine the resistivity (r) of a disposed(p) have 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 continuance is the equal all along a uniform wire so if the resistance of different lengths of a wire is constitute out, the resistivity can be calculated. Resistance of a material, R = emf / Current Resistance of a conductor, R = r ? distance / 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 substitute the resistance to change the current and voltage for each length - ammeter ? the 5 ampere outlet was utilise since the c urrent was mainly over 1 amperes - voltmeter ? the 5 volt outlet was used because voltage was always below 5 ...If you want to effectuate a full essay, order it on our website: OrderCustomPaper.com
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