Fuses Flashcards
1
Q
What is a surge
A
When there is a sudden increase in current in an appliance
2
Q
What do a fuse and a circuit breaker do
A
They break the circuit whenever the current gets too high
3
Q
What is the fuse connected to
A
Live wire
4
Q
What is the circuit breaker connected to
A
Live wire
5
Q
How does a fuse work
A
When a surge happens, the fuse heats up and melts, which breaks the fuse and stops the currents
6
Q
What should the fuse measure to if the current is 3A
A
Around 5A
7
Q
What are one advantage and disadantage for fuse
A
Advantage: Simple and cheap
Disadvantage: Broken after one surge
8
Q
How does a circuit breaker work
A
Turns off circuit after a surge
9
Q
What is one advantage and disadvantage of a circuit breaker
A
Advantage: Not permanently broken after tripped
Disadvantage: More expensive
