To investigate the factors of affecting the resistance of a wire.

Physics Coursework- Ohms Law Aim: To investigate the factors of affecting the unsusceptibility of a fit. In this experiment I will be victimization a metal nichrome equip to show the tube when the length and width is changed. Variables Variables that I am waiver to dungeon the same. Variables that I am difference to change. Width- 0.36mm2 Material- Nichrome conducting telegram Voltage- 2V Temperature- means Temperature          Length- 10cm, 20 cm, 30cm, 40cm, 50cm Material- Nichrome Length- 50cm Voltage- 2V Temperature- Room Temperature          Width- 0.36mm2, 0.32mm2, 0.24mm2, 0.16mm2, 0.12mm2, 0.08mm2 In this experiment I am going to use the nichrome wire as a theater handler and I will be measuring the resistance by using an ammeter and a voltmeter because electricity tummy pass done the nichrome wire and the voltmeter will bewilder me the volts produced and the ammeter will urinate me the amps produce, because these read ings can be used to find the resistance. The resistance of a conductor is defined by the equation: R=V I Resistance = Potential disparity (Voltage)(V) Current (amps) therefrom I will be using this formula to give me the resistance, where the voltage divided by the current will feature upon the resistance.

Metals conduct electricity because the atoms in them do not respite on to their electrons very well, and so creating free electrons, carrying a negative charge to jump along the line of atoms in a wire. Resistance is caused when these electrons flowing towards the positive terminal have to jumps atoms. So if we double the length of a wire, the number of atoms in the wir e doubles, so the number of jumps double, so! twice the amount of wholeheartedness is required: There are twice as some(prenominal) jumps if the wire is twice as long. The thinner the wire is the slight carry of... If you want to get a full essay, value it on our website: OrderEssay.net

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