Question 48
EasyOriginal questionA fuse protects the wiring of a house because it
Show the answer and explanation
CorrectNot quiteAnswer C
Correct answer: C
Explanation
A fuse is a short wire of low melting point in series with the circuit.
An overload or short circuit heats it until it melts, cutting off the current before the house wiring overheats.
Worth noting
Earthing is a separate safety measure that carries leakage current from a metal body to the ground.
- Concept
- How a fuse works
- Typical timeTypical
- 35 s
- Your timeYours
- —
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