GCSE Science/Electricity multiple choice practice question 1
A kettle is fitted with a 13A fuse which one of the following statements is correct.
- The fuse's main purpose is to protect a person should the live wire touch the metal case
- The current in the live wire is kept at 13A by the fuse
- The fuse is a special sort of resistor. It keeps the current below 13A by resisting any extra current
- If the current goes above 13A the fuse will melt, and so break the circuit