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Unit 1 - How to answer this 9 mark question (AQA) Watch

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    In the question paper for Jan 12
    http://store.aqa.org.uk/qual/gce/pdf...1-QP-JAN12.PDF
    question 5 asks:

    A student is given a piece of metal wire and asked to investigate how the resistance of
    the wire changes between a temperature of 0 oC and 100 oC.
    5 (a) (i) Draw a labelled diagram of a suitable arrangement that would enable the student to
    carry out the experiment
    5 (a) (ii) Describe the procedure the student would follow in order to obtain accurate and reliable
    measurements of the resistance of the wire at different temperatures between
    0 oC and 100 oC.
    The quality of written communication will be assessed in your answer.


    However the markscheme
    http://store.aqa.org.uk/qual/gce/pdf...W-MS-JAN12.PDF
    doesn't help explain to me how the set up should be. I'm sort of stuck as to what i should draw. The only things i am sure of are an ammeter and a voltmeter. That's it. How do i draw this circuit?

    Also for 5b the markscheme we put the wire in the water bath and ice and stir. Why would we do this?

    Thanks in advance
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      9
      Something like this

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      ok thanks, but is the circuit to draw just a wire?
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        (Original post by user1-4)
        ok thanks, but is the circuit to draw just a wire?
        The wire being tested can be drawn as a resistor. The rest of the circuit is as you suggested. The resistance could be measured with a basic voltmeter and ammeter circuit. (And power supply of course.)
       
       
       
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