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4.4.2. Electrical safety
A subsection of Physics, 5054, through 4. Electricity and magnetism
Listing 10 of 88 questions
A fuse is one form of protection in an electrical circuit. State two other forms of protection that are included in household electrical circuits. These may protect the consumer, the circuit or an electrical appliance. 1. 2. shows a fusebox connected to part of a lighting circuit in a house. fusebox fuse wire W State how shows that wire W is the live wire. On , mark with a letter s, the correct position for a switch that controls both lamps. The rating of the fuse in the lighting circuit is 5 A. Explain what this means.
5054_s18_qp_22
THEORY
2018
Paper 2, Variant 2
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The cable of a washing machine contains three separate wires. There is a fuse in one of the wires. Explain how the earth wire and the fuse work together to make the washing machine safer. State the name of the wire in which the fuse is connected. Explain why the fuse is connected into this wire. The cable of a hair-dryer contains only two wires. State the name of each of these wires. 1. 2. Suggest why the hair-dryer does not need an earth wire.
5054_w20_qp_22
THEORY
2020
Paper 2, Variant 2
View
Questions Discovered
88