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Aim: To investigate the factors that affect the resistance in a conductor. The main factors that affect the resistance in a conductor are:

· Length

· Temperature

· Cross sectional area

· Material

· Magnetism

The factor that we are going to change is the cross sectional area.

Hypothesis: I think that the higher the cross sectional area, the lower the resistance in the conductor will be. This is because the Resistance in a metal conductor happens because as the electrons move through the material (once a voltage has been applied) they collide with the atoms in the material and as a result lose some of their energy. The idea of resistance is simply how difficult it is for the electrons to move through a material. The more difficult it is, the more energy they lose in the material on their travels.

We define electrical resistance as the ratio of voltage to current.

The equation we use to find the resistance from the current and voltage is:......

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Approximate Word Count: 1800
Approximate Pages: 8 (250 words per double-spaced page)

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