Igcse Model Questions Vol1 2022 Mathematics Question 4
Practice objective / multiple choice question 4 from the 2022 Igcse Model Questions Vol1 Mathematics examination.
The resistance \(R\) (in ohms) of a uniform wire varies directly as its length \(L\) (in metres) and inversely as the square of its radius \(r\) (in millimetres). A wire of length 2 m and radius 1 mm has a resistance of 8 Ω. Find the resistance of a wire of length 3 m and radius 2 mm.
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This is Igcse Model Questions Vol1 2022 Mathematics Question 4. It is one of the objective questions from the 2022 Igcse Model Questions Vol1 Mathematics examination.
Difficulty level: Medium .
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