Chapter : 2. Magnetic Effect of Current

Electric Fuse
Introduction : It is a small, simple and cheap but very useful electric appliance used in domestic electric circuits.
Working : Whenever there is sudden voltage rise in mains or “over–loading” or short–circuiting’ in domestic electric circuits, the current becomes very large and exceeds current tolerance of the electric appliance, the fuse becomes hot and melts to break the circuit. The appliance is saved from the damage to be caused by the large current.

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