DC circuitsQuestion 838 of 1506

Which type of material has a negative temperature coefficient of resistance?

  1. Carbon, silicon, germanium
  2. Copper, aluminum and brass
  3. Pure iron, nickel and cobalt
  4. Silver, gold and platinum
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Correct answer: Carbon, silicon, germanium

For these elements, resistance goes down as temperature goes up.

Source: Lessons in Electric Circuits I: DC (Kuphaldt), 12.6: Temperature Coefficient of Resistance

Practice dc circuits

Questions last reviewed: 18 October 2026