Revision: Practical Electricity Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. 17 Practical Electricity - Revision Quiz Test your understanding of Practical Electricity here: 1 / 5 1) Most hair dryers don't have an earth wire. Why is this so? The fan prevents the heating coil from becoming too hot. The casing is plastic. The current is too small. The plug is installed with a fuse. 2 / 5 2) Why is are fuses and switches connected in the live wire? To disconnect the appliance from the live wire. So that the current can be stopped before reaching the appliance. To help the fuse blow. To cut off current to the appliance. 3 / 5 3) 1 kWh is equivalent to how many joules? 1000 J 3600 J 3 600 000 J 60 000 J 4 / 5 4) 2018 S4 EOY P1 Q26 If a 10 A fuse can properly protect a rice cooker operating at 220 V, which of the following can be the maximum power of the rice cooker? 2000 W 1000 W 500 W 4000 W 5 / 5 5) When paying our electricity bill, what are we paying for? energy used charge used current used power used Your score is Restart quiz
