At the meter-board in the house, live wires and neutral wires pass into an electricity meter through a main fuse. Through the main switch, they are connected to the live wires in the house. These wires supply electricity to separate circuits within the house. Earth wire is used as a safety measure. Those appliances that have a metallic body, is connected to the earth wire. i. In our country, the potential difference between live and neutral wires is: - a) 240V b) 230V c) 220V d) 200V ii. The insulation cover of live wire is of which colour? a) Red b) Green c) Black d) Yellow iii. The insulation cover of neutral wire is of which colour? a) Red b) Green c) Black d) Yellow iv. The insulation cover of earth wire is of which colour? a) Red b) Green c) Black d) Yellow v. Why is the metallic body of an appliance connected to the earth wire? a) Because it provides low resistance conducting path for the current. b) It keeps potential of the metallic body of an appliance to that of earth c) Protects from electric shocks d) All