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4.2.4a Resistance

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Question 39

A metal wire of a fixed volume is drawn out to have various diameters $d$ , resulting in different resistances $R$ .

Which of the following relationships between $R\,$ and $d\,$ is correct?

A

$R$ is inversely proportional to $d$

B

$R$ is inversely proportional to $d^2$

C

$R$ is inversely proportional to $d^3$

D

$R$ is inversely proportional to $d^4$

Markscheme

4.2.4a Resistance Questions

IGCSE
Physics
4.2.4a Resistance

132 exam-style questions on CIE IGCSE Physics 4.2.4a Resistance. Each one has a worked solution and a mark scheme showing where the marks go.

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