Salma Ahmed
English Lit. GCSE Student
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How does the length of a piece of wire affect its resistance?
- Words:
- 2538
- Submitted:
- Fri Jul 02 2004
Have a little read: ... GCSE Double Science Coursework: Physical Processes Strand 1: How does the length of a piece of wire affect its resistance? By Matthew Colley TQN Science Planning Aim: For this piece of coursework, I will be investigating the effect of resistance on different lengths of wires, using Ohm's Law. The wires we will be comparing are copper, Constantine 28 and Constantine 30. This experiment will be performed according to Health and Safety conditions under the guidance of the teachers. Scientific Knowledge: - A wire is a bundle of metal strips coated in plastic. The plastic can vary in colour and connect to different terminals These are: - ? Black = negative terminal ? Red = positive terminal ? Blue = neutral terminal ? Green and yellow = earth terminal ? Brown = live terminal The material varies because it has free electrons, which are able to flow through the wire. The number of the electrons depends on the amount of
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