What is the role of a circuit breaker in an electrical system?

A circuit breaker serves a crucial function in an electrical system by detecting faults, such as short circuits or overloads, and interrupting the current flow to prevent damage to the electrical components and reduce the risk of fire. When a fault condition arises, the circuit breaker automatically trips, disconnecting the electrical circuit and safeguarding the entire system.

This protective measure ensures that electrical currents do not exceed safe levels, which can lead to overheating or electrical fires. The ability to quickly disconnect power helps protect both equipment and lives in case of an electrical fault. Hence, the circuit breaker effectively acts as a safety device, maintaining the integrity of the electrical system and ensuring safe operation.

In contrast, options that suggest amplifying current flow, generating electrical power, or storing energy do not align with the primary function of circuit breakers, which is purely protective in nature.