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Category: Science
Word Count: 1484
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Resistance of A Wire

Resistance of a Wire
Task
To investigate how the resistance of a wire is affected by the length of the wire.
Theory

What is resistance?

Electricity is conducted through a conductor, in this case wire, by means of free electrons. The number of free electrons depends on the material and more free electrons means a better conductor, i.e. it has less resistance. For example, gold has more free electrons than iron and, as a result, it is a better conductor. The free electrons are given
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