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Wire Resistance Investigation
- Words:
- 1797
- Submitted:
- Thu Jul 11 2002

... Wire Resistance Investigation Aim: To investigate how the length of a wire can affect resistance. Safety: My main concern will be that if I turn the voltage up to high the wire could snap and hot metal could fly up into the eye. So I will wear goggles to protect my eyes. Method: First I will sellotape a piece of wire over a metre long to a metre ruler. Then will connect up a battery pack to an ammeter then the ammeter to the voltmeter then the voltmeter to the piece of wire using crocodile clips at 0cm then the negative clip is moved up and down the wire stopping at 10cm, 20cm and up to 70cm. Each time the length of the wire has changed I will read the ammeter and the voltmeter and record the results so from there I can work out the resistance which is R= V/I. Other













