A mains-operated electrical appliance has a metal outer casing. Which row in the table correctly identifies where the fuse must be placed and what the earth wire must be connected to for safety?
| Wire containing the fuse | Connection of the earth wire | |
|---|---|---|
| A | live | neutral wire |
| B | live | metal casing |
| C | neutral | metal casing |
| D | neutral | heating element |
Row A
Row B
Row C
Row D
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.