Fuse wire is used in electric circuit to prevent:Electrical appliances and circuit from high currentthe insulatorUs from electric shockthe ammeter

Fuse wire is a crucial safety component in electrical circuits, designed specifically to prevent various forms of damage and hazards. Its primary purpose is to protect electrical appliances and circuits from high current.

When current flowing through the circuit exceeds a predetermined level, the fuse wire melts due to the heat generated, thus interrupting the circuit. This action prevents potential damage to electrical appliances that could result from excessive current, such as overheating and fires.

While it also indirectly helps safeguard individuals by preventing scenarios that could lead to electric shocks, its main function is to serve as a protective measure for equipment rather than as a direct safety device for people.

Therefore, the correct answer among the options provided is: Electrical appliances and circuit from high current. This emphasizes the fuse wire's role in maintaining circuit integrity and longevity.