Physics 0625 · IGCSE · Electrical quantities

Electrical quantities — practice question

The table shows four different resistance wires. Each one is made from the same metal. Which wire has the least resistance?

  • Alength of wire $2.0\,\text{m}$, diameter of wire $1.0\,\text{mm}$
  • Blength of wire $2.0\,\text{m}$, diameter of wire $1.5\,\text{mm}$
  • Clength of wire $3.0\,\text{m}$, diameter of wire $1.0\,\text{mm}$
  • Dlength of wire $3.0\,\text{m}$, diameter of wire $1.5\,\text{mm}$

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