Salma Ahmed
English Lit. GCSE Student
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Investigate the resistance of 'nichrome' wire.
- Words:
- 2365
- Submitted:
- Fri Jan 09 2004
Have a little read: ... Aim of investigation I am planning to investigate the resistance of 'nichrome' wire, which is found in all electronic circuits, such as electric fires, kettles and toasters. All of these heating elements are made of thin nichrome wire. As all conductors have some resistance, I plan to prove if there is any relationship between the resistance of the wire and the conditions and situations it is placed under. I am looking closely at the resistance of the wire (nichrome) and to see how much it will change as the length of the wire is shortened. 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
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