O-LevelPhysicsElectricity5054/11 · May/June 2014 · Q301 Mark

A piece of wire has a resistance of 16Ω. Another wire made from the same metal has four times the length and twice the cross-sectional area. What is the resistance of the wire?

A8Ω

B32Ω

C96 Ω

D128 Ω

✓ Correct answer

B: 32Ω

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Topic: Electricity, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, May/June 2014 Paper 1 Variant 1, question 30.

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