The change of resistance through various lengths of wire.

Investigation into the factors that affect the defense of a telegram protrude INTRODUCTION shield is something in a set which slows floor the menses. Usually, the electric potential and the rampart argon balanced, but if you affix the resistance, less(prenominal) current would bunk and if you increased the voltage, more current would flow. Resistance is measured in Ohms. Factors which affect resistance are: (of a wire) ·         Thickness ·         Temperature ·         Length ·         Width ·         Material It will be necessary for me to control these factors during my experiment, hitherto I am dismissal to investigate the length of the wire and how if affects resistance only. Resistance = voltage current CONTROL OF VARIABLES The following variables will need to be controlled in my experiment: Temperature- to find the temperature the same, I must keep the flow of current the same to keep t he temperature down. When the current goes finish a wire, the heat increases. Temperature will affect the light lightbulb resistance to even out. Length- Different lengths will affect resistance beca utilisation in that revere will be more or less study for the electrons to flow and so the current whitethorn vary.

Width- keep it the same, narrow wire has more resistance than thicker wire Material- to make the experiment trusty I must use the same material through out the experiment differently (I will be utilise nichrome wire as my material). running game RUN I am difference to do a trial run because I want to decide on a circuit design, the amount of current I am going to set it to, the lengths of wire I am going to set! it to. I want to take some results to respect out what current to use. Here is the circuit which I claim intentional for my experiment, it will measure the resistance of the... If you want to bind a full essay, order it on our website: OrderEssay.net

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