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O-LevelPhysicsElectricity5054/12 · May/June 2024 · Q311 Mark

How many kilowatt-hours of energy are used by a 1000 W heater connected to a 230 V supply for 30 minutes?

A0.30 kWh
B0.50 kWh
C30 kWh
D120 kWh

✓ Correct answer

B: 0.50 kWh

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About this question

Topic
Electricity, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source
O-Level Physics, May/June 2024 Paper 1 Variant 2, question 31.

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