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) The current in an electrical appliance, when working normally, is 5.0 A. What is the current in each of the three wires connecting the appliance to the "mains"? Live wire: 5.0 ANeutral wire: 0.0 AEarth wire: 0.0 A Live wire: 5.0 ANeutral wire: 0.0 AEarth wire: 5.0 A Live wire: 5.0 ANeutral wire: 5.0 AEarth wire: 0.0 A Live wire: 5.0 ANeutral wire: 5.0 AEarth wire: 5.0 A 2 / 5 2) Which one of the following diagrams shows the correct connection for two lamps rated, "240 V, 50 W"‚ and "240 V, 30 W"‚ in a household circuit? (L stands for Live wire, and N for Neutral wire.) 3 / 5 3) Why is are fuses and switches connected in the live wire? To help the fuse blow. So that the current can be stopped before reaching the appliance. To disconnect the appliance from the live wire. To cut off current to the appliance. 4 / 5 4) 1 kWh is equivalent to how many joules? 60 000 J 3600 J 1000 J 3 600 000 J 5 / 5 5) In the circuit below, there are four fuses F1 to F4 with their ratings labelled in brackets. When the switch S is closed, which two fuses are likely to blow? F1 and F4 only F3 and F4 only F2 and F3 only F1 and F2 only Your score is Restart quiz
