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In the electrical circuit of a house, the fuse acts as

  • A.A load
  • B.A thermopile
  • C.A safety device
  • D.A step down device

Answer: C

The fuse is a safety device.

It is a short length of wire of low melting point in series with the circuit. If the current exceeds the rated value, the heat \(I^2Rt\) melts the wire and breaks the circuit before the wiring can overheat and start a fire.

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