In which of the following cases does the fuse operate to break the circuit?

Under loading

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Over loading

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Short Circuit

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Both B and C

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Solution

The correct option is D
Both B and C

Fuse operates when excessive current flows through the circuit. In both short-circuit and overloading, a large amount of current flows through the circuit and hence, the fuse operates to break the circuit.

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Name the device used to protect the electric circuits from over loading and short circuit. On what effect of currect does it work?

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