Physics 0625 · IGCSE · Electrical quantities

Electrical quantities — practice question

A laboratory contains a standard wire whose resistance is known. It also contains other wires, all 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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