A student is using a laptop computer. The student sees that the cable linking the laptop power adapter to the mains electricity supply is damaged, as shown in Fig. 10.1.
(a)[1]
State the hazard of using mains equipment when the insulation is damaged.
(b)[3]
Describe the way a fuse protects a mains electrical appliance.
(c)[3]
Calculate the output (secondary) voltage from the transformer.
(d)[1]
State the name of the material used in the core of the transformer.
Worked solution & mark scheme
This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “electrocution OR overheating / fire” …