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A-LevelPhysicsElectricity9702/12 · Oct/Nov 2013 · Q351 Mark

The wire of a heating element has resistance R. The wire breaks and is replaced by a different wire. Data for the original wire and the replacement wire are shown in the table. [Figure 35.1] What is the resistance of the replacement wire?

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AR / 4
BR / 2
CR
D2R

✓ Correct answer

B: R / 2

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About this question

Topic
Electricity, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source
A-Level Physics, Oct/Nov 2013 Paper 1 Variant 2, question 35.

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