Physics
Grade-9
Easy

Question

On what principle does a fuse works?

  1. Fuse works on the principle of the chemical effects of current.
  2. Fuse works on the principle of the magnetic effects of current.
  3. Fuse works on the principle of the heating effects of current.
  4. Fuse works on the principle of the magnetic and heating effects of current.

The correct answer is: Fuse works on the principle of the heating effects of current.


    Electrical fuse works on the principle of heating effect of electric current. When a current more than the rated amount passes through a fuse, it melts due to excessive heating and breaks the circuit and the current stops flowing.
    Fuse works on the principle of the heating effects of current.

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