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Topic: Science
Number of pages / Number of words: 7 / 1740
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In both experiments constantan wire is used because it does not heat up as much as copper, so the resistance is not effected as much.

Experiment Two - The circuit isset up is the same, as is the method apart from the length is constant at 50cm, and the thickness is changed between 28, 30, 32, 34, 36, 38 and 40 swg...


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For both experiments the voltage will be kept the same at 2V dc from a power pack. Both experiments will be done twice with different ammeters in case of any damaged or old equipment to gain more accurate results.

Results

Experiment 1

Length (cm)

V1 (volts)

V2 (volts)

A1 (amps)

A2 (amps)

Average resistance (Ohms)

100

1...


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