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6 marksI - V Relationships

CSEC Physics · January 2014 · Paper 2 · Question 5(a)

With the aid of a diagram, describe an experiment that may be used to investigate the relationship between current, I, and potential difference, V, for a filament lamp. Sketch your expected result.

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Other parts of this question

  1. 5(b)(i)Assuming negligible losses in the connecting wires, calculate the required potential difference of the supply.[5 marks]
  2. 5(b)(ii)Calculate the current in the 5 kΩ resistor.[3 marks]
  3. 5(b)(iii)If the 2 kΩ resistor burns out, what current now flows in the 5 kΩ resistor?[1 mark]

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