Energy and Voltage in Circuits
2 marks · EasyAn electric kettle has a current of 6.0 A flowing when connected across a 240 V supply. Calculate the resistance of the kettle.
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40 Ω (±1)
Common mistakes: Dividing current by voltage instead of voltage by current
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Marking points
M1 · 1 mark · Uses R = V / I or substitutes values correctly.
A1 · 1 mark · Correct answer: 40 Ω (with unit).
Worked solution