Question 7
FThe Figure shows the information label on a microwave oven.
Figure
a.[1]
State what the symbol ∼ \sim\,∼ on the label tells you about the supply.
b.[2]
Calculate the current in the microwave oven when it is working normally.
c.[3]
Fuses are available with ratings of 3 A, 5 A and 13 A.
Explain which fuse should be fitted in the plug of the microwave oven.
d.[2]
A student suggests fitting a 30 A fuse so that the fuse never melts.
Explain why this would be dangerous.
10.4 Mains electricity Questions
81 exam-style questions on Edexcel GCSE Physics 10.4 Mains electricity, covering 10.4.1 Direct and alternating current, 10.4.2 Live, neutral and earth wires; safety, 10.4.3 Mains wire potential differences and dangers, and 10.4.4 Power ratings and energy use. Each one has a worked solution and a mark scheme showing where the marks go.