Physics 0625 · IGCSE · Electrical safety

Electrical safety — practice question

Circuit breakers and fuses are devices that protect a circuit against overloading. Which statement describes the difference between a circuit breaker and a fuse correctly?

  • ACircuit breakers can be reset if they operate but fuses need to be replaced.
  • BCircuit breakers need to be replaced if they operate but fuses can be reset.
  • CCircuit breakers can be used in an a.c. circuit but fuses cannot.
  • DCircuit breakers cannot be used in an a.c. circuit but fuses can.

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