True or False: A thermal breaker can also exhibit magnetic action.

A thermal breaker can indeed exhibit magnetic action, making the statement true. This is important because thermal breakers, used widely in electrical circuits for overcurrent protection, typically operate based on two mechanisms: thermal and magnetic. The thermal aspect responds to prolonged overloads, where heating causes a bimetallic strip to bend and trip the circuit. In contrast, the magnetic action kicks in during short-circuit conditions, allowing for a rapid response to prevent damage by immediately interrupting the flow of excessive current.

Understanding the dual functionality of thermal breakers helps in selecting the right protection for electrical systems. The coexistence of both thermal and magnetic actions is crucial for managing various fault conditions effectively, thus preventing equipment damage and ensuring safety.