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4.2.4a Resistance

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Question 57

The table below shows the lengths and diameters of four wires made of the same metal.

Wirelength / mdiameter / mmA0.401.5B0.403.0C0.801.5D0.803.0 \begin{array}{|c|c|c|} \hline \text{Wire} & \text{length / m} & \text{diameter / mm} \\\\ \hline \text{A} & 0.40 & 1.5 \\\\ \hline \text{B} & 0.40 & 3.0 \\\\ \hline \text{C} & 0.80 & 1.5 \\\\ \hline \text{D} & 0.80 & 3.0 \\\\ \hline \end{array} WireABCD​length / m0.400.400.800.80​diameter / mm1.53.01.53.0​​

Which wire has the greatest resistance?

A

Wire A

B

Wire B

C

Wire C

D

Wire D

Markscheme

4.2.4a Resistance Questions

  1. IGCSE
  2. /Physics
  3. /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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