A student connects a resistor to a power supply and measures the current through it as 0.25 A when the potential difference across it is 6.0 V. What is the resistance of the resistor?

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Question

A student connects a resistor to a power supply and measures the current through it as 0.25 A when the potential difference across it is 6.0 V. What is the resistance of the resistor?

Accepted Answer

24 Ω — Award 1 mark for correct calculation: R = V/I = 6.0/0.25 = 24 Ω. A is incorrect — this is the result of multiplying 6.0 × 0.25. B is incorrect — this results from dividing 0.25 by 6.0 and inverting incorrectly. D is incorrect — this results from using incorrect units or decimal place error.

Answer

24 Ω

Answer

150 Ω

Answer

6.25 Ω

Answer

1.5 Ω

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