A bulb is said to be fused when:

the circuit is broken

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its element breaks

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the circuit is open

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its filament breaks

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Solution

The correct option is D
its filament breaks

A bulb is said to be fused when its filament breaks.

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Similar questions

A circuit is said to be open circuit or complete when current flows through it. True/ False.

Why does the filament of a bulb fuse and break even if there is no oxygen to burn it?

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