Question

What does a 5 A rating on a fuse mean?

• A. Burns down if I < 5 A
• B. Melts if I > 5 A
• C. Can function only if I = 5 A
• D. Does not indicate anything

Answer 1

The correct option is B

Melts if I > 5 A

5A rating on a fuse means that the fuse melts above a current of 5 A as fuses are used to cut the circuit once a current greater than the rating is passed through it.