Physics 0625 · IGCSE · Electrical quantities

Electrical quantities — practice question

A laboratory has a standard wire with a known resistance. It also has other wires made from the same material as the standard wire, but with different lengths and diameters. Which wire would certainly have a resistance lower than that of the standard wire?

  • Alonger length, larger diameter
  • Blonger length, smaller diameter
  • Cshorter length, larger diameter
  • Dshorter length, smaller diameter

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