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

Physics Coursework- Ohms Law Aim: To investigate the factors of affecting the defense of a fit. In this experiment I will be victimization a metal nichrome equip to show the protection when the length and width is changed. Variables Variables that I am waiver to come up the same. Variables that I am exhalation to change. Width- 0.36mm2 Material- Nichrome 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 fit out as a theater coach and I will be measuring the resistance by using an ammeter and a voltmeter because electricity tummy pass finished the nichrome wire and the voltmeter will bewilder me the volts produced and the ammeter will ruin me the amps produce, wherefore these readings can b e 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) and then I will be using this formula to give me the resistance, where the voltage divided by the current will wear off upon the resistance. Metals conduct electricity because the atoms in them do not recession on to their electrons very well, and so creating free electrons, carrying a negatively charged 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 wire doubles, so the number of jumps double, so twice the amount of zero is required: There are twice as some(prenominal) jumps if the wire is twice as long. The thinner the wire is the slight bring of... If you want to get a full essay, value it on our website: OrderCustomPaper.com

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