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Aim: The aim of this investigation is to find out how the length of a wire affects the current, voltage, and resistance of a wire.

Apparatus: To do the investigation I will need different pieces of equipment. I will need: A power pack
An ammeter
A voltmeter
5 wires – covered in plastic with crocodile clips at one end
A ruler
A long wire (approx. 100cm)
Sticky tape

Measuring:
Current: To measure the current, I will have to attach the wires to the ammeter, the power pack, the wire, and the ruler. The current (measured in amps) should automatically show up on the ammeter.
Voltage: To measure the voltage, I will use the same method but instead of using the ammeter, I will use a voltmeter
Resistance: To measure the resistance, you have to divide the current by the voltage. For example, if the current is 0.31 and the voltage is 0.60, the resistance would be 0.31 / 0.60 which would equal 1.93
Length: To measure the length of the wire, I will stick the wire to......

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Approximate Word Count: 418
Approximate Pages: 2 (250 words per double-spaced page)

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