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Physics (AS & A Level) · May / June 2024 · Paper 13 · Question 31

9702Resistance and resistivity

The current in a filament lamp is increased. Which statement about the lamp is correct?

  1. AThe brightness of the lamp decreases.
  2. BThe potential difference across the filament decreases.
  3. CThe resistance of the filament decreases.
  4. DThe temperature of the filament increases.

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Correct answer: D. The temperature of the filament increases.

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