Question
Download Solution PDFWhen the short circuit condition occurs, the current in the circuit
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
Fuse:
- An electrical safety device that is used to protect the electrical circuit from overload is called a fuse.
- The material used for fuse elements must be of:
- low melting point, low ohmic loss,
- high resistivity,
- low cost and free from detraction.
- The material used for making fuse element has a low melting point such as tin, lead, or zinc.
- A low melting point is, however, available with a high specific resistance metal.
- The material mainly used for fuse element are tin, lead, silver, copper, zinc, aluminum, and an alloy of lead and tin
- Working of fuse:
EXPLANATION:
- When there is a sudden increase of current in the circuit then a huge amount of heat is generated at the fuse. Therefore option 3 is correct.
- Due to this heat, a spark is generated.
- Due to the huge amount of heat, the fuse melts and the circuit opened up.
Last updated on May 30, 2025
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