Physics
Grade-9
Easy
Question
Which of the following fuse will blow first if a current of 8.1 A is passed through the circuit?
- Fuse A will blow first
- Fuse B will blow first
- Fuse C will blow first
- Fuse A and B will blow together
Hint:
Fuse is a protective device used to disconnect the supply when the current flowing through it exceeds
The correct answer is: Fuse B will blow first
Fuse is a protective device used to disconnect the supply when the current flowing through it exceeds. It is a wire made up of a metal that has low melting point. High current heats and melts it, breaking the circuit.
Fuse B will blow first if a current of 8.1 A is passed through the circuit.
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