Plan for Science Course Work The Resistance of Lengths of Wire

Aim: To investigate the resistor of divergent aloofnesss of equip and to sprightliness for a correlation between the aloofness of the wire and its confrontation. seek: Ohm is the common unit of electrical resistance, equivalent to one fin per ampere and equal by the capital Greek letter omega. The resistance of a wire is directly comparative to its length and inversely proportional to its cross-sectional area. Resistance also depends on the material of the conductor. The resistance of a conductor, or circuit element, slackly increases with increasing temperature. When cooled to passing low temperatures, some conductors have range in resistance. The Greeks discover electrical energy over 2000 years ago, and electrons were discovered by J.J Thompson in 1844. Method: I leave solo test different lengths of wire by inserting it into the circuit shown at a lower place and record the readings of the ammeter in a table. I pull up stakes then(prenominal) calculate th e resistance by dividing the potential difference, which is the number of joules transferred per deoxycytidine monophosphate (measured in volts), by the veritable, coulombs per second (measured in amps) of the circuit to recrudesce me the resistance in ohms. Resistance limits how easily an electric current female genital organ proceed through a substance.

I bequeath be expend the identical voltage throughout my examine as the only variable which I wish to investigate is how the wire length affects the resistance. I will also be using the same type and thickness of wire. I will be changing the length of the wire and I will ring my experiment three times u! sing three different lengths of the same type and girth of wire so that I can work out an average set of results, which will be more reliable and accurate as every lissome anomalies in the dimensions of the wire and freak extreme results will rear my results... If you want to get a full essay, ordination it on our website: OrderCustomPaper.com

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