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A fuse is used in mains electric supply as a safety devices. Which one of the following statements about the fuse is correct ?

1)It is connected in parallel with the main switch

2)It is made mainly from silver alloys

3)It must have a low melting point

4)It must have a very high resistance


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    It must have a low melting point

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  • Exam: Electricity And Magnetism QUESTIONS





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