MCQ
A fuse is used in an electrical appliance:
- ATo earth the appliance.
- ✓To protect the appliance and its cable.
- CTo change the efficiency of the applicance.
- DTo change the current rating of the applicance.
✓
Answer
Correct option: B.
To protect the appliance and its cable.
Fuse is a device used to prevent overheating of appliances due to a sudden increase in the current in the circuit.
It protects the device and the user.
When the electric current is higher than the normal current needed by a circuit, the fuse blows up and breaks the circuit.
Hence, it protects the circuit from a power overload.
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