FUSES AND CIRCUIT BREAKER Flashcards
FUSES
what is a fuse
it is a component with a thinner piece of higher resistance wire inside
FUSES
explain how a fuse works
and what it prevents
if the current in a circuit becomes too high ,
the fuse wire over heats , melts
and breaks the circuit
the prevents damnae to appliances that are connected in the circuit
FUSE
list 2 advantages of a fuse
its is cheap
and can be purchases from any hardware store
FUSE
list a disadvantage of a fuse
it has too be replaced once resistance wire melts
CIRCUIT BREAKER
what are CIRCUIT BREAKERs
they are switches that trip when electric current in a circuit becomes too large
this stops the flow of electricity
CIRCUIT BREAKER
list 3 advantages of CIRCUIT BREAKERs compared to a fuse
- act faster than a fuse
- more reliable
- fuse have to be replaced , while circuit breakers are switched bak on