A mains electric circuit has a circuit breaker installed instead of a fuse. Where is the circuit breaker placed, and what occurs when the current becomes too large?
- Athe live wire; a thin wire melts and breaks the circuit.
- Bthe live wire; an electromagnet opens a switch.
- Cthe neutral wire; a thin wire melts and breaks the circuit.
- Dthe neutral wire; an electromagnet opens a switch.