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4.2.4a Resistance

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Question 34

A piece of metal wire X with a uniform diameter has resistance RRR.

A second piece of wire Y is made of the same metal and has a uniform diameter. Wire Y has three times the length of wire X and half the cross-sectional area of wire X.

What is the resistance of wire Y in terms of RRR?

[3]
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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