Physics · May / June 2020 · Paper 11 · Question 40

A kettle is connected to the 240 V mains supply using a plug containing a 13 A fuse. The kettle contains water. When it is switched on, the fuse blows. This happens again after a new fuse is fitted. Someone replaces the fuse with a nail, and the kettle works. What else might happen as a result of replacing the fuse with a nail?

1. AA very large current overloads the wiring, causing a fire.
2. BThe kettle boils the water less quickly.
3. CThe kettle uses more energy to boil the water.
4. DThe water boils at a higher temperature.

As printed in the paper