Physics 9702 · AS & A Level · Resistance and resistivity

Resistance and resistivity — practice question

A wire is placed in an electric circuit, and the current in the wire is measured. Which single change could increase the current in the wire?

  • Aan increase in the length of the wire
  • Ban increase in the radius of the wire
  • Can increase in the resistance of the wire
  • Dan increase in the resistivity of the wire

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