Physics revision P2.3 Electric current 0.0 / 5 ? PhysicsForcesGCSEAQA Created by: melisaCreated on: 18-09-13 22:57 How many kWh of electricity are used when a 2kW fire is on for 30 minutes? 1 1 of 7 A 0.25kW computer is on for 4 hours (1kWh costs 10p). How much does this cost? 10p 2 of 7 Batteries produce DC electricity. What does DC stand for? DC stands for direct current. 3 of 7 Which of the following is not needed for a current to flow? A switch is not needed for a current to flow. 4 of 7 In which direction does conventional current flow? Conventional current flows from positive to negative terminals. 5 of 7 Which of the following would not conduct electricity? Plastic is a non-metal and will not conduct electricity. 6 of 7 What type of current is mains electricity? Mains electricity is AC. 7 of 7
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