Resistance Of a Wire

Investigating the effect aloofness has on the electric resistance of a wire Aim The aim of this essay is to find let out what effect continuance has on the resistance of a wire. The live, potentiality and resistance of a conductor are related by the by-line equation: V = I x R (Voltage = Current x Resistance) Ohms legality states that the current by dint of a wire is relative to the PD a frustrate it, provided that the temperature of the wire remains constant. I give exercising Ohms law in my experiment to think the effect distance has on the resistance of a wire. Variables Controlled: Temperature, cross sectional area, and material of the wire. Independent: Length of the Wire Dependent: Resistance, victimization the electric potential and current results I depart collect Description of a fair test I will repeat the experiment 10 times at each length employ a rheostat for average results. These average results will suss out that, should what ever experimental error take place, it wont be very significant as the nine new(prenominal) goodish results should cancel it out. I will use a discombobulate in my circuit to control the temperature of the wire, as Ohms integrity states that the temperature must remain constant. I will also use two 1V batteries, and will not change those batteries at all time during the experiment.

Prediction I predict that the resistance of the wire will increase as the wire length also increases. scientific theories that explain my prescience The first opening Im basing my prediction on is Collision Theory, where p lain electrons collide with oppositely supe! rcharged atoms. Therefore, the longer the wire, more collisions should occur, consequence resistance will increase; because more collisions mean the dilatory they will move. Ohms Law is the second theory Im basing my prediction on. Ohms law is used to purpose resistance in the following equation. R = V/I (Resistance = Voltage / Current) Ohms Law states that the current through a wire is proportional to the PD crosswise it, provided that the...If you want to realise a full essay, order it on our website: BestEssayCheap.com

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