What is the purpose of a fuse in an AC circuit?

What is the purpose of a fuse in an AC circuit?

• A. To enhance circuit efficiency
• B. To protect circuits from overloads
• C. To measure voltage accurately
• D. To increase current flow

Answer: (B)

The purpose of a fuse in an AC circuit is to protect circuits from overloads. Fuses are designed to safeguard electrical systems by melting and breaking the circuit when the current exceeds a predetermined level, thus preventing potential damage to wiring and connected components. This failsafe mechanism helps avoid overheating, which could lead to insulation failure, short circuits, or even fires. By interrupting the current flow when excessive heat is detected, fuses act as a critical safety feature within electrical systems, ensuring that components operate within their safe limits to maintain functionality and safety.

The purpose of a fuse in an AC circuit is to protect circuits from overloads. Fuses are designed to safeguard electrical systems by melting and breaking the circuit when the current exceeds a predetermined level, thus preventing potential damage to wiring and connected components. This failsafe mechanism helps avoid overheating, which could lead to insulation failure, short circuits, or even fires. By interrupting the current flow when excessive heat is detected, fuses act as a critical safety feature within electrical systems, ensuring that components operate within their safe limits to maintain functionality and safety.