The determination of the resistivity of the material of a wire is included in all the A-level specifications and in a specified practical in all but one. Students are therefore expected to be familiar with it.
Part (a) is a QER (quality of extended response) question, which is assessed on presentation as well as its content. This question has a slight twist in that, instead of just writing out a standard experimental procedure, the student has to improve on the stated one, so that it has aspects of assessment objective 3 (AO3) as well as AO1 (Box 1). It is, however, a straightforward question, so the examiners will expect full answers, with many details required for high marks.
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