A domestic appliance is connected to the mains electricity supply which has a potential difference of 240 V240\text{ V}240 V.
The current in the appliance is 0.15 A0.15\text{ A}0.15 A. Calculate the power of the appliance.
Use the equation: power=potential difference×current\text{power} = \text{potential difference} \times \text{current}power=potential difference×current
Calculate the energy transferred by the appliance when 350 C350\text{ C}350 C of charge flows through it.
Use the equation: energy transferred=charge flow×potential difference\text{energy transferred} = \text{charge flow} \times \text{potential difference}energy transferred=charge flow×potential difference
The appliance has a fault containing an exposed live wire. Describe the difference between the hazard and the risk in this scenario for someone repairing the appliance.
Practise AQA GCSE Physics Domestic uses and safety with exam-style questions for Foundation and Higher tier. 13 questions covering Direct and alternating potential difference and Mains electricity, matched to the AQA GCSE Physics (8463) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.