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Physics coursework science isa coursework physics as level ocr-b coursework ocr 21st century a science coursework 2015-2017 resistivity of a wire help edexcel unit 2: physics at work ~9th june 2014 aqa physics gcse p2 & p3 [official thread.Physics coursework theory - resistance of a wirephysics gcse coursework resistance of wire essay physics gcse coursework: resistance of wire aim: to investigate if the length resistance of a wire coursework gcse - overlandguildorglink ---- resistance of a wire coursework gcse paper writing service - essayeruditecom quoting poetry in research.This will give me the resistance of the wire in ohms.5) I will repeat the original test for 100cm a further two times, giving me a set of three results.
Resistance decreases if the cross-sectional area is increased this sometimes confuses people, as it's not obvious look at these two pieces of metal: the narrow wire has fewer paths available for the electrons to move through whilst the larger wire has many more routes they could take this makes conduction easier.
The ammeter measures Direct Current (from a 12V power supply). To calculate the resistance of the wire I will divide the voltage (V) by the current (I), which will give me the resistance in ohms (W).
Equipment: The equipment that I will use is:- power pack- ammeter- voltmeter- 30 SWG (diameter) constantan wire- 1 metre ruler- leads- crocodile clips Method: This is exactly what I will do:1) I will set up my experiment as shown in the diagram, with the ammeter connected in series and the voltmeter connected in parallel.2) I will stretch the wire out along the metre ruler and place the crocodile clips exactly 100cm apart.3) I will make sure that the voltmeter and ammeter are switched on, and I will then turn on the power pack at a voltage of 2 volts.4) I will record the voltage and the current, and to calculate the resistance of the wire I will do the calculation voltage divided by current.
Gcse coursework resistance of a wire features article content that reproduce conversations to check how the resistance of a wire is overstated via the dimension of wire page related to resistance of the wire coursework depicts to observe how the resistance of a wire is exaggerated because of the measurement of wire.
Gcse physics coursework - resistance of a wire coursework rough trials in order to decide upon the voltage and lengths of wire to use in the final experiment, the following rough trials were carried out: at 3v: length (cm) voltage (v) current (a) resistance (w) (to 2 dp) 10 041 090 046 20 051 057 089 30 056 042.