Physics iGCSE - Mains Electricity (BGS Year 10) 0.0 / 5 ? PhysicsElectricityIGCSEEdexcel Created by: S Carruthers - teacherCreated on: 15-05-13 10:34 What colour is the neutral wire? Blue 1 of 10 How does a fuse work? When the current is higher than the fuse rating (in Amps), the fuse melts 2 of 10 An Earth wire is important because it creates an alternate path for the current if the live wire touches the metal casing 3 of 10 The power switch on an electrical device should always be in the live wire 4 of 10 Products don't need an Earth wire if they don't have a metal casing 5 of 10 Electrical power is measured in watts 6 of 10 The equation for electrical power is P = I x V 7 of 10 Electrical energy is measured in joules 8 of 10 The energy 'used' by an electrical device can be calculated using Energy (joules) = Power (watts) x Time (secs) 9 of 10 The voltage of all mains devices in the UK is 230 V 10 of 10
Comments
No comments have yet been made