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To find out what factors affect the resistance of a wire (besides current of temperature)

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  • Essay length: 2351 words
  • Submitted: 11/07/2002
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GCSE Electricity and Magnetism

The first 200 words of this essay...

Aim: -

To find out what factors affect the resistance of a wire (besides current of temperature.) We must use two different variables.

Variables: -

Variables Chosen Variables

Length of wire.

Thickness

Type of wire.

Chosen Variable: -

I have chosen length of wire as one as my variables because it will give me a good range of results. I will be able to compare the results from the shortest wire to the longest. I will start at 100cm then I will take 10cm off each time until I get to 50cm. (100,90,80,70,60,50cm)

The type of wire will also give me a good range of results because I will be able to see if the difference in thickness of wire makes a difference and if the different type of wire makes a difference. (E.g. aluminum and copper.) The thickness will range between 0.71mm and 0.20mm. So I will do as many different types of metal that I can do with in the allotted time.

Prediction: -

For preliminary work, we tested how the temperature of a circuit can affect the resistance of a bulb

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