A fuse is one form of protection in an electrical circuit. [Figure 8.1 shows a fusebox connected to part of a lighting circuit in a house. The fusebox contains three fuses. A wire W connects the fusebox to two lamps in parallel.]

1. (a)State two other forms of protection that are included in household electrical circuits. These may protect the consumer, the circuit or an electrical appliance.[2]
2. (b)(i)Fig. 8.1 shows a fusebox connected to part of a lighting circuit in a house. State how Fig. 8.1 shows that wire W is the live wire.[1]
3. (b)(ii)On Fig. 8.1, mark with a letter s, the correct position for a switch that controls both lamps.[1]
4. (b)(iii)The rating of the fuse in the lighting circuit is 5A. Explain what this means.[1]

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