An electric kettle is plugged into the mains supply using a fused plug.
The current in the kettle is 4.0 A.
The cable attached to the kettle is rated at 10 A.
The fuses available are rated at 1.0 A, 3.0 A, 5.0 A, and 13 A.
Which fuse should be used?
1.0 A1.0\text{ A}1.0 A
3.0 A3.0\text{ A}3.0 A
5.0 A5.0\text{ A}5.0 A
13 A13\text{ A}13 A
135 exam-style questions on CIE IGCSE Physics Electrical safety, covering Electrical safety. Each one has a worked solution and a mark scheme showing where the marks go.