Which term describes a device that opens the circuit when overheated or too much current exists, examples include fuses, fusible links, or circuit breakers?

Which term describes a device that opens the circuit when overheated or too much current exists, examples include fuses, fusible links, or circuit breakers?

• A. Circuit protector
• B. Circuit breaker
• C. Condenser
• D. Conductors

Answer: (A)

A circuit protector describes a device that opens the circuit when overheating or too much current exists. Fuses, fusible links, and circuit breakers all serve this protective role by interrupting current to prevent damage or fire. They are all forms of circuit protectors, with a circuit breaker being a specific type of protection device, while fuses and fusible links are one-shot protections. The other options don’t fit the function: a condenser is a capacitor used for storing charge, and conductors are the wires that carry current, neither of which interrupts the circuit to provide protection.

A circuit protector describes a device that opens the circuit when overheating or too much current exists. Fuses, fusible links, and circuit breakers all serve this protective role by interrupting current to prevent damage or fire. They are all forms of circuit protectors, with a circuit breaker being a specific type of protection device, while fuses and fusible links are one-shot protections. The other options don’t fit the function: a condenser is a capacitor used for storing charge, and conductors are the wires that carry current, neither of which interrupts the circuit to provide protection.