Physics 0625 · IGCSE · Electric circuits

Electric circuits — practice question

A piece of metal wire is acting as a resistor in a circuit. Which alteration to the wire would cause the current in the circuit to increase?

  • Aconnecting a second identical length of wire in parallel with the original wire
  • Bconnecting a second identical length of wire in series with the original wire
  • Cdecreasing the thickness of the wire
  • Dincreasing the length of the wire

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