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Cambridge IGCSE. 2025. Physics (0625). May/June - Paper 2 (22) · Multiple Choice (Extended) - Question 28

Cambridge IGCSE · Paper 2 (22) · Multiple Choice (Extended)

Question 28

A metallic wire X has a resistance.

What is the difference in resistance for a wire of the same material as X that is:

- shorter than X but the same diameter
- the same length as X but with a smaller diameter?
  1. resistance of shorter wire: greater; resistance of wire with smaller diameter: greater
  2. resistance of shorter wire: greater; resistance of wire with smaller diameter: smaller
  3. resistance of shorter wire: smaller; resistance of wire with smaller diameter: greater
  4. resistance of shorter wire: smaller; resistance of wire with smaller diameter: smaller
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