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O Level
Physics
Paper 2 - Theory
5054_s13_qp_22
Question 11
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Topics Tested
2. Thermal physics
2.2.3. Melting, boiling and evapora...
Explain how evaporation causes cooling
4. Electricity and magnet...
4.4.1. Uses of electricity
Recall and use the equation power = current × voltage, P = IV