Investigating Resistances of Wires :: Papers

Investigating electrical resistances of Wires Aim To investigate different resistances of wires to see which has the nigh resistance and which shows the least resistance. I go forth be catching at resistances affected by the aloofness of wire. Variables I could change I had the survival of several variables to change such as length, cross sectional area, corporal and temperature the experiment is conducted at. Prediction I believe that by increasing the wires length it would increase the resistance. Therefor by decreasing the length it would also devolve the resistance. I also believe that the rate of the increasing resistance will be directly proportional to the length so if the length were threefold the resistance would also double. I think the graph will look like this Reason The property that transforms electrical energy into heat energy, in opposing electrical current, is resistance. A property of the atoms of all conductors is t hat they have stop electrons in the outer shell of their social system. As a result of the structure of all conductive atoms, the outer electrons are able to move most ceasely even in a solid. When there is a dominance difference across a conductive material all of the free electrons arrange themselves in lines moving in the same direction. This forms an electrical current. Resistance is encountered when the charged particles that make up the current collide with other stock-still particles in the material. As the resistance of a material increases so to must the force required to drive the same amount of current. (Information comprise on a GCSE Physics website) Ohms law In1826 Georg Ohm discovered that the current flowing through with(predicate) the wire is proportional to the potential difference across it (providing the temperature stays the same.) Proportional heart if you double the potential difference the current is doubled (this informat ion was found in GCSE Physics for you text book) Current through the wire IMAGE Amps Volts