Physics 0625 · IGCSE · Electrical safety

Electrical safety — practice question

Circuit breakers and fuses are protective devices that prevent a circuit from becoming overloaded. Which statement correctly explains how a circuit breaker differs from a fuse?

  • 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.

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI