Physics 0625 · IGCSE · Electrical quantities

Electrical quantities — practice question

Which two alterations to a metal wire would both lower its resistance?

  • Alength of wire: decrease; cross-sectional area of wire: decrease
  • Blength of wire: decrease; cross-sectional area of wire: increase
  • Clength of wire: increase; cross-sectional area of wire: decrease
  • Dlength of wire: increase; cross-sectional area of wire: increase

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