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4.2.4a Resistance

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Question 41

An aluminum wire of length 60 cm and cross-sectional area 0.15 mm2 has resistance RRR.

Which length of aluminum wire of cross-sectional area 0.45 mm2 has resistance RRR?

A

20 cm20\text{ cm}20 cm

B

40 cm40\text{ cm}40 cm

C

120 cm120\text{ cm}120 cm

D

180 cm180\text{ cm}180 cm

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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