Aim

To investigate the resistance of a wire using the equation V=IR

Prediction

I predict that resistance will be directly proportional to the length of the wire.

*P.6a/P.8a

Apparatus

• Voltmeter
• Ammeter
• Piece of wood
• Copper wire (100cm)
• Crocodile clips
• Connecting wires
• 2 Cells

Diagram

Method

• I am going to have my experiment all set out with the apparatus as in the diagram above. The copper wire of 100cm connected firmly to the piece of wood (wood is used as it will not interfere and not conduct.
• I will then connect everything up except for the cells with the connection wires.
• Then I will put the crocodile clips at 10 cm of the copper wire
• Then the connection wires will be connected to the cells until a firm reading of Current and Voltage is read.
• This will only be a short time as it may begin to heat up as the electrons will flow quickly between 10cm of wire and will not take as long, which would cause my......

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Title: Miss
Approximate Word Count: 587
Approximate Pages: 3 (250 words per double-spaced page)

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