Safety devices
1 mark · EasyGive one advantage of a circuit breaker over a fuse.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
Circuit breakers can be reset, but fuses must be replaced.
Also accept: Can be reset; No need to replace after use
Common mistakes: Circuit breakers are faster
Show mark scheme and worked solution
Marking points
B1 · 1 mark · Gives a valid advantage: resettable, no replacement needed.
Worked solution
Circuit breakers can be simply reset after a fault. Fuses must be replaced.