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GCSE Science/Electricity multiple choice practice question 1
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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