Physics
Grade-9
Easy
Question
When does a fuse blow off?
- When high current flows through the circuit
- When high voltage is applied across the circuit
- When high pressure is applied across the circuit
- When high resistance is placed into the circuit
Hint:
When high current flows through the circuit.
The correct answer is: When high current flows through the circuit
- When high current flows through the circuit, the fuse blow off.
- Fuse wire has a low melting point so that it melts due to the heat energy generated when a large current flows through it.
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